Un-framed version or Framed version Mirror sites: (Main page) (thistlethwaites mirror)

All active SN
over mag 17.0
NameMagType
J1149213.5Ia
ASASSN-15kk14.4*Ia
ASASSN-15lp14.9*Ia
M31-06a?14.9*FeII
ASASSN-15jm15.7*Ia
ASASSN-15ng15.7unk
ASASSN-15kz15.7*IIP
J1241515.7*Ia
ASASSN-15mm15.8II
ASASSN-15lg15.8*Ia
ASASSN-15mc15.8Ia
J0206215.9Ia-91T
ASASSN-15ln15.9*II
J1334416.0II
2015J16.0*IIn
ASASSN-15lv16.0IIb
Gaia15agm16.1*Ia
ASASSN-15kx16.1*Ia
J2043516.2Ia
J1602516.2*Ia
2015F16.2*Ia
J2246016.3Ib
J1749216.3*IIP
ASASSN-15jo16.3*Ia
ASASSN-15mi16.3Ia-pec
ASASSN-15mj16.4Ib
J1348016.4unk
J1147316.4Ib
ASASSN-15hf16.4*Ia
ASASSN-15kq16.4*Ia
ASASSN-15kj16.4*Ic
J1729216.6II
PS15bmq16.6unk
ASASSN-15kp16.6Ia
ASASSN-15lf16.6IIn
ASASSN-15hy16.7*Ia-pec
J0820316.7*unk
ASASSN-15mp16.7Ia
2015N16.8Ia
ASASSN-15mg16.8Ia
ASASSN-15mf16.8Ia
ASASSN-15la16.8Ia
2015L16.9*SLSN-I
ASASSN-15ml16.9Ia
Supernova in Mrk 47716.9Ia
2015M16.9*Ia-91T
J0248416.9unk

* - last observation is over one month old.  

A long time ago, in a galaxy far far away, a star exploded.   This star exploded so violently that for a few weeks the star outshone its parent galaxy.   This type of explosion is called a Supernova.   The last one in our galaxy was 400 years ago, making us about 300 years overdue for the next one.   On this web page you will find a list of the currently observable supernovae, along with information on their location, reference images, and their last reported brightness.   The data on this page comes from CBET and ATEL circulars.   Data also comes from IAU's Transient Objects Confirmation page and List of Recent Supernovae web page.   These web pages have brought you the latest in supernovae data and images since April 1997.   18 years and counting.

.   For yesterday's updates, go to the updates page.

News: 2015L is a Type SLSN-I, and the most luminous supernova ever discovered.   Big problems with http://www.RochesterAstronomy.org/snimages. Be sure to do a "refresh" or remove your cashe if you do not see recent data.   Please check the mirror site: http://www.supernova.thistlethwaites.com/snimages/.   Please see Padova-Asiago Supernova Group for the latest spectra.   A new paper throws some cold water on the Type Ia standard candle theory, making accurate light curves of these objects even more important (article).   For the year 2015, 1906 supernovae (16 CBAT, 96 unconfirmed, and 1794 other sources) have been reported. (1956 last year)   The brightest SN of the year is 2015F (Mag 12.9).

New features: This CSV file has all of the statistics I have gathered in one file. The Active supernovae page is a version of this page which is designed to be easier to read.   I've done extensive work recently in the Archives.   If anybody knows who some of the "unknown" discoverers are, please let me know.   Does anybody know of a grant that I could apply to for supporting this page? I probably spend about 2 hours a night working on it.   Please note my backup e-mail address: dbishopx at gmail.com .  To turn off the icons, use this link.   I am (re)starting a supernova e-mail list.   Please sign up if interested.   VSNet is partially back up!   LOSS ask people who discover supernovae to provide an offset from a nearby star to make spectroscopy easier.  

PSN J02484234+1418454, CBAT TOCP discovered 2015/07/29.124 by unknown
Found in UGC 2282 at R.A. = 02h48m42s.34, Decl. = +14°18'45".4
Located 3" east and 9" south of the center of UGC 2282
Mag 16.9:7/29, Type unknown

PSN J23164332+3359476, CBAT TOCP discovered 2015/07/28.001 by Constantine Emmanouilidi
Found in UGC 12474 at R.A. = 23h16m43s.32, Decl. = +33°59'47".6 (= PGC 70909)
Located 1" west and 3" north of the center of UGC 12474 (Discovery image)
Mag 17.0:7/28, Type unknown

PSN J13050777-3211311, CBAT TOCP discovered 2015/07/24.338 by Stu Parker (BOSS)
Found in ESO 443-G56 at R.A. = 13h05m07s.77, Decl. = -32°11'31".1
Located 3" west and 2" south of the center of ESO 443-G56 (Discovery image)
Mag 17.5:7/24, Type unknown

ASASSN-15nh, ATEL 7841 discovered 2015/07/21.300 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 00h44m31s.28, Decl. = -03°01'01".5
Located 0" east and 0" north of the center of the host galaxy (Joseph Brimacombe image)
Mag 17.2:7/21, Type unknown

ASASSN-15ng, ATEL 7840 discovered 2015/07/24.000 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 221-G12 at R.A. = 13h51m31s.65, Decl. = -48°04'33".7
Located 8".5 west and 27".0 north of the center of ESO 221-G12 (Discovery image) (Joseph Brimacombe image)
Mag 15.7:7/26, Type unknown

PSN J00312606-4935336, CBAT TOCP discovered 2015/07/22.604 by Peter Marples and Stu Parker (BOSS)
Found in ESO 194-G24 at R.A. = 00h31m26s.06, Decl. = -49°35'33".6
Located 7" east and 10" south of the center of ESO 194-G24 (Discovery image) (Joseph Brimacombe image) (Stu Parker image)
Mag 17.1:7/25, Type unknown (References: SN 1982P)

ASASSN-15mx, ATEL 7816 discovered 2015/07/19.310 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 14h24m44s.55, Decl. = +26°02'52".1
Located 8".9 east and 3".5 south of the center of the host galaxy (Discovery image) (G. Locatelli image) (Diego Rodriguez image)
Mag 17.0:7/27 (16.8:7/19), Type Ia (z=0.031) (Padova-Asiago spectrum) (References: ATEL 7824)

PSN J13344316+0920194, CBAT TOCP discovered 2015/07/11.340 by Greg Bock and Stu Parker (BOSS)
Found in IC 900 at R.A. = 13h34m43s.16, Decl. = +09°20'19".4
Located 2".2 east and 5".8 north of the center of IC 900 (Discovery image) (G. Locatelli image) (Andrea Mantero image) (Joseph Brimacombe image) (JM Llapasset image)
Mag 16.0:7/28 (15.9:7/19), Type II (References: ATEL 7819; SN 2009gl)

ASASSN-15ms, ATEL 7811 discovered 2015/07/18.320 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 14h50m27s.50, Decl. = +06°37'11".7
Located 1".8 west and 1".6 south of the center of the host galaxy (Discovery image) (Seiichiro Kiyota image)
Mag 17.3:7/18, Type Ia (References: ATEL 7826)

ASASSN-15mr, ATEL 7811 discovered 2015/07/18.420 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in CGCG 257-2 at R.A. = 19h39m56s.82, Decl. = +50°55'28".5
Located 0".1 west and 0".2 north of the center of CGCG 257-2 (Discovery image) (Joseph Brimacombe image)
Mag 17.4:7/18, Type unknown (z=0.026759)

ASASSN-15mq, ATEL 7810 discovered 2015/07/18.430 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 05h01m46s.20, Decl. = -13°43'53".5
Located 5".7 west and 2".8 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.0:7/18, Type unknown (z=0.024944)

ASASSN-15mp, ATEL 7808 discovered 2015/07/17.270 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 00h58m45s.26, Decl. = -14°04'11".8
Located 0".8 east and 0".4 north of the center of the host galaxy (Discovery image)
Mag 16.7:7/17, Type Ia (z=0.037) (References: ATEL 7817)

PSN J02062253-5201267, CBAT TOCP discovered 2015/07/12.660 by Stu Parker (BOSS)
Found in ESO 197-G24 at R.A. = 02h06m22s.53, Decl. = -52°01'26".7
Located 16" east and 14" north of the center of ESO 197-G24 (Discovery image) (Joseph Brimacombe image)
Mag 15.9:7/17, Type Ia-91T (z=0.0196) (References: ATEL 7815)

Supernova in Mrk 477, ATEL 7800 discovered 2015/07/08.310 by HST
Found in Mrk 477 at R.A. = 14h40m38s.30, Decl. = +53°30'13".8
Located 0" east and 0" north of the center of Mrk 477 (Discovery image) (Joseph Brimacombe image) (Manfred Mrotzek image) (Manfred Mrotzek image) (William Wiethoff image)
Mag 16.9:7/8, Type Ia (z=0.038) (offset 2.4) (References: ATEL 7830)

PSN J22044374-3313306, (= MASTER OT J220443.74-331330.6), ATEL 7793 discovered 2015/07/12.909 by MASTER robotic Net
Found in PGC 679288 at R.A. = 22h04m43s.74, Decl. = -33°13'30".6
Located 3".2 west and 12".9 south of the center of PGC 679288 (Discovery image) (Joseph Brimacombe image)
Mag 18.3:7/18, Type Ia (z=0.059) (References: ATEL 7820 CBAT TOCP)

ASASSN-15mm, ATEL 7792 discovered 2015/07/13.350 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h25m23s.50, Decl. = +29°10'24".5
Located 1".0 east and 6".9 north of the center of the host galaxy (Discovery image) (Masanori Mizutani image)
Mag 15.8:7/20, Type II (z=0.021) (References: ATEL 7802, ATEL 7807)

PSN J16020770+1753549, CBAT TOCP discovered 2015/07/12.640 by THU-NAOC Transient Survey (TNTS)
Found in an anonymous galaxy at R.A. = 16h02m07s.70, Decl. = +17°53'54".9
Located 5" west and 5" north of the center of the host galaxy (Discovery image)
Mag 19.0:7/12, Type II (z=0.045) (References: ATEL 7832)

PSN J23342383+2727196, CBAT TOCP discovered 2015/07/12.770 by THU-NAOC Transient Survey (TNTS)
Found in an anonymous galaxy at R.A. = 23h34m23s.83, Decl. = +27°27'19".6
Located 4" west and 10" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 18.8:7/12, Type Ia (z=0.059) (References: ATEL 7830)

ASASSN-15ml, ATEL 7791 discovered 2015/07/12.460 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 20h03m01s.67, Decl. = -21°54'48".3
Located 0".4 east and 3".3 north of the center of the host galaxy (Discovery image)
Mag 16.9:7/12, Type Ia (z=0.020) (References: ATEL 7802)

ASASSN-15mj, ATEL 7790 discovered 2015/07/12.280 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 14h02m15s.64, Decl. = +33°39'40".3
Located 6".7 west and 0".9 south of the center of the host galaxy (Discovery image)
Mag 16.4:7/12, Type Ib (z=0.0344) (References: ATEL 7796, ATEL 7821)

ASASSN-15mi, ATEL 7790 discovered 2015/07/06.320 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in Mrk 283a at R.A. = 14h03m15s.75, Decl. = +41°36'14".4
Located 1".6 west and 0".8 north of the center of Mrk 283a (Discovery image) (Joseph Brimacombe image) (JM Llapasset image)
Mag 16.3:7/23 (16.2:7/13), Type Ia-pec (z=0.0344) (References: ATEL 7796)

PSN J02513304+3730434, CBAT TOCP discovered 2015/07/12.735 by Koichi Itagaki
Found in KUG 248+373 at R.A. = 02h51m33s.04, Decl. = +37°30'43".4
Located 1" west and 7" north of the center of KUG 248+373 (Discovery image)
Mag 17.0:7/12, Type Ib/c (z=0.02) (References: ATEL 7830)

PSN J20435314+1230304, CBAT TOCP discovered 2015/07/11.017 by Massimo Caimmi (ISSP)
Found in NGC 6956 at R.A. = 20h43m53s.14, Decl. = +12°30'30".4
Located 7" west and 14" south of the center of NGC 6956 (Discovery image)
Mag 16.2:7/21 (16.0:7/19), Type Ia (z=0.0155) (References: ATEL 7796; SN 2013fa, 2006it)
PSN J20435314+1230304 images sub-page

PSN J02283286+2017077, CBAT TOCP discovered 2015/07/10.744 by Koichi Itagaki
Found in NGC 938 at R.A. = 02h28m32s.86, Decl. = +20°17'07".7
Located 9" west and 6" north of the center of NGC 938 (K. Itagaki image)
Mag 17.3:7/10, Type unknown

PSN J22460504-1059484 (= PS15bgt), CBAT TOCP discovered 2015/07/10.655 by Koichi Itagaki
Found in NGC 7371 at R.A. = 22h46m05s.04, Decl. = -10°59'48".4
Located 19" east and 16" north of the center of NGC 7371 (K. Itagaki image) (Marc Deldem image) (T. Noguchi image) (Marc Deldem image) (PS1 image) (Masanori Mizutani image) (Rodrigo Losada image) (Francisco Soldán image) (Joel Nicolas image)
Mag 16.3:7/18 (16.2:7/12), Type Ib (z=0.0089) (Padova-Asiago spectrum) (References: ATEL 7787, ATEL 7821, ATEL 7845)

ASASSN-15mg, ATEL 7780 discovered 2015/07/09.370 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h32m22s.80, Decl. = +41°50'59".6
Located 0".54 west and 1".29 north of the center of the host galaxy (Discovery image) (Joel Nicolas image) (Joseph Brimacombe image)
Mag 16.8:7/9, Type Ia (z=0.0428) (Padova-Asiago spectrum) (References: ATEL 7787)

PSN J17292918+7542390, CBAT TOCP discovered 2015/07/09.993 by Ron Arbour
Found in NGC 6412 at R.A. = 17h29m29s.18, Decl. = +75°42'39".0
Located 31" west and 23" north of the center of NGC 6412 (Discovery image)
Mag 16.6:7/28 (16.3:7/20), Type II (z=0.0044) (Padova-Asiago spectrum) (References: ATEL 7787)
PSN J17292918+7542390 images sub-page

PSN J20150317-1959462 (= SNhunt291), CBAT TOCP discovered 2015/07/08.340 by Catalina Real-Time Transient Survey and Stan Howerton
Found in ESO 596-G10 at R.A. = 20h15m03s.17, Decl. = -19°59'46".2
Located 2" east and 5" north of the center of ESO 596-G10 (Discovery image) (Stan Howerton image)
Mag 18.4:7/8, Type unknown

PSN J20321942-1812176 (= SNhunt292), CBAT TOCP discovered 2015/07/08.420 by Catalina Real-Time Transient Survey and Stan Howerton
Found in ESO 597-G7 at R.A. = 20h32m19s.42, Decl. = -18°12'17".6
Located 12" east and 26" south of the center of ESO 597-G7 (Discovery image) (Stan Howerton image)
Mag 19.3:7/8, Type unknown

ASASSN-15mf, ATEL 7775 discovered 2015/07/07.320 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in UGC 9108 NED02 at R.A. = 14h14m22s.80, Decl. = +02°58'31".0
Located 2".56 west and 0".21 south of the center of UGC 09108 NED02 (Discovery image)
Mag 16.8:7/7, Type Ia (z=0.026) (References: ATEL 7781)

PSN J17520838+1314252, CBAT TOCP discovered 2015/07/06.977 by S. Maticic
Found in an anonymous galaxy at R.A. = 17h52m08s.38, Decl. = +13°14'25".2
Located 1" west and 21" north of the center of the host galaxy (A. Mantero image) (Joel Nicolas image)
Mag 17.7:7/9 (17.6:7/6), Type Ia (z=0.033) (References: ATEL 7794)

2015N (= PSN J21431689+4334476), CBET 4124 discovered 2015/07/06.425 by Lick Observatory Supernova Search
Found in UGC 11797 at R.A. = 21h43m16s.89, Decl. = +43°34'47".6
Located 36".2 west and 12".9 north of the center of UGC 11797 (Discovery image) (Joel Nicolas image) (Gianluca Masi image) (William Wiethoff image) (Joseph Brimacombe image) (Esteban Aguilar image) (Joel Nicolas image) (Paolo Campaner image) (Thomas Langhans image)
Mag 16.8:7/28, Type Ia (z=0.019) (References: ATEL 7767, ATEL 7771, CBAT TOCP)

ASASSN-15mc, ATEL 7765 discovered 2015/07/05.610 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in UGC 2295 at R.A. = 02h48m59s.57, Decl. = +03°10'10".5
Located 10".9 east and 3".3 north of the center of UGC 2295 (Discovery image) (Joseph Brimacombe image)
Mag 15.8:7/5, Type Ia (z=0.0139) (References: ATEL 7803, ATEL 7806; SN 2003hm)

PSN J13480490+6149153, CBAT TOCP discovered 2015/07/02.240 by E. Briggs, D. Post, Jack Newton, and Tim Puckett
Found in UGC 8734 at R.A. = 13h48m04s.90, Decl. = +61°49'15".3
Located 7".01 west and 20".2 south of the center of UGC 8734 (Discovery image) (Joel Nicolas image) (Marco Russiani image) (Esteban Aguilar image) (G. Locatelli image) (William Wiethoff image) (Rodrigo Losada image)
Mag 16.4:7/5 (16.3:7/2), Type unknown

PSN J11492548-0507138 (= MASTER OT J114925.48-050713.8), ATEL 7732 discovered 2015/06/29.773 by MASTER robotic Net
Found in IC 2963 at R.A. = 11h49m25s.48, Decl. = -05°07'13".8
Located 13".7 east and 7".6 south of the center of IC 2963 (Discovery image) (Joseph Brimacombe image)
Mag 13.5:7/8, Type Ia (z=0.0056) (References: ATEL 7825, CBAT TOCP)

PSN J15052651+4633395 (= SNhunt290), CBAT TOCP discovered 2015/06/29.270 by Catalina Real-Time Transient Survey
Found in UGC 9703 at R.A. = 15h05m26s.51, Decl. = +46°33'39".5
Located 2" east and 15" south of the center of UGC 9703 (Discovery image) (Paolo Campaner image unconfirmed)
Mag 18.7:6/29, Type unknown

ASASSN-15lx, ATEL 7719 discovered 2015/06/26.360 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 47-G4 at R.A. = 20h36m05s.24, Decl. = -73°06'32".4
Located 0" east and 0" north of the center of ESO 47-G4 (Discovery image) (Joseph Brimacombe image)
Mag 17.3:6/26, Type IIn (z=0.013) (offset 14.28NE) (References: ATEL 7724)

2015J (= SMTJ07350518-6907531), CBET 4115 discovered 2015/04/27.900 by SkyMapper
Found in an anonymous galaxy at R.A. = 07h35m05s.18, Decl. = -69°07'53".1
Located 0" east and 0" north of the center of the host galaxy
Mag 16.0:6/9, Type IIn (z=0.0054) (SkyMapper Light curve) (References: ATEL 7711, ATEL 7762)

ASASSN-15lv, ATEL 7700 discovered 2015/06/23.310 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 01h58m59s.71, Decl. = -32°22'18".5
Located 13".6 east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Roland Santallo image)
Mag 16.0:7/29 (15.97:7/16), Type IIb (z=0.011) (References: ATEL 7746)

ASASSN-15lu, ATEL 7698 discovered 2015/06/20.320 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 13h21m12s.90, Decl. = +40°15'56".4
Located 0".2 east and 0".3 south of the center of the host galaxy (Discovery image)
Mag 17.1:6/20, Type Ia (z=0.035037) (References: ATEL 7707)

ASASSN-15lp, ATEL 7691 discovered 2015/06/20.610 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in MRK 576 at R.A. = 01h49m10s.32, Decl. = +05°38'23".3
Located 1".0 east and 1".1 south of the center of MRK 576 (Discovery image) (Joseph Brimacombe image) (Seiichiro Kiyota image)
Mag 14.9:6/21, Type Ia (z=0.017686) (References: ATEL 7692)

2015O (= PSN J18134923+1314159), CBET 4125 discovered 2015/06/22.378 by Lick Observatory Supernova Search
Found in PGC 1426131 at R.A. = 18h13m49s.23, Decl. = +13°14'15".9
Located 5" east and 6" south of the center PGC 1426131 (Discovery image) (Paolo Campaner image)
Mag 18.3:6/22, Type II (z=0.056) (References: ATEL 7724, CBAT TOCP)

ASASSN-15lo, ATEL 7673 discovered 2015/06/19.520 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 22h53m33s.89, Decl. = +19°42'30".4
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (PS1 image)
Mag 17.9:6/30 (16.7:6/19), Type Ia (z=0.04) (offset 15) (References: ATEL 7675, ATEL 7676)

ASASSN-15ln, ATEL 7670 discovered 2015/06/19.580 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in UGC 546 at R.A. = 00h53m41s.40, Decl. = +18°05'29".0
Located 9".1 west and 31".2 north of the center of UGC 546 (Discovery image) (Thomas Langhans image)
Mag 15.9:6/21, Type II (References: ATEL 7712)

KSN-2015a, ATEL 7664 discovered 2015/06/03.000 by Kepler Extra-Galactic Survey at R.A. = 08h23m50s.14, Decl. = +11°32'56".2 Mag 18.5:6/3, Type Ia (z=0.034)

PSN J11473508+5558147 (= PS15aym), CBAT TOCP discovered 2015/06/17.299 by Patrick Wiggins
Found in NGC 3888 at R.A. = 11h47m35s.08, Decl. = +55°58'14".7
Located 5".6 east and 12".9 north of the center of NGC 3888 (Discovery image) (Confirmation image) (Gianluca Masi image) (Gianluca Masi image) (Joseph Brimacombe image) (Giancarlo Cortini image) (JM Llapasset image) (Gianpiero Locatelli image) (PS1 image) (JM Llapasset image)
Mag 16.4:7/23 (16.1:6/20), Type Ib (z=0.008) (References: ATEL 7680)

ASASSN-15li (= PS15bdl), ATEL 7645 discovered 2015/06/16.340 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 14h25m07s.69, Decl. = +62°53'29".7
Located 1".2 west and 6".1 north of the center of the host galaxy (Discovery image) (Gianpiero Locatelli image) (JM Llapasset image) (PS1 image)
Mag 17.1:7/4 (16.1:6/16), Type Ia (References: ATEL 7653)

PSN J23072407-6129212, CBAT TOCP discovered 2015/06/16.681 by Stu Parker (BOSS)
Found in ESO 147-G20 at R.A. = 23h07m24s.07, Decl. = -61°29'21".2
Located 6" east and 5" south of the center of ESO 147-G20 (Discovery image)
Mag 17.3:6/16, Type II (z=0.027092) (References: ATEL 7692)

PSN J15514444+6712028, CBAT TOCP discovered 2015/06/14.930 by Massimo Caimmi (ISSP)
Found in MCG +11-19-24 at R.A. = 15h51m44s.44, Decl. = +67°12'02".8
Located 5" east and 22" north of the center of the MCG +11-19-24 (Discovery image) (Andrea Mantero image) (Andrea Mantero image)
Mag 19.7:6/17 (18.7:6/14), Type unknown

2015L (= ASASSN-15lh), ATEL 7642 discovered 2015/06/14.250 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 22h02m15s.45, Decl. = -61°39'34".6
Located 0".41 east and 0".04 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (DES image)
Mag 16.9:6/18, (16.8:6/9) Type SLSN-I (z=0.2326) (References: ATEL 7774, ATEL 7776, ATEL 7843, CBET 4120)

ASASSN-15lf, ATEL 7634 discovered 2015/06/15.340 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in NGC 4108 at R.A. = 12h06m45s.56, Decl. = +67°09'24".0
Located 5".9 east and 23".2 south of the center of NGC 4108 (Discovery image) (Gianluca Masi image) (Giancarlo Cortini image) (Joel Nicolas image) (Joel Nicolas image) (Joel Nicolas image) (JM Llapasset image) (Joel Nicolas image) (Joel Nicolas image) (Joel Nicolas image) (Esteban Aguilar image) (Joel Nicolas image) (JM Llapasset image)
Mag 16.6:7/23 (15.6:6/22), Type IIn (z=0.008382) (References: ATEL 7644)

ASASSN-15lg, ATEL 7635 discovered 2015/06/15.350 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in CGCG 44-42 at R.A. = 13h15m32s.84, Decl. = +03°30'02".3
Located 2" east and 9".4 south of the center of CGCG 44-42 (Discovery image) (Gianluca Masi image)
Mag 15.8:6/22, Type Ia (z=0.020) (References: ATEL 7640 ATEL 7644)

PSN J08203964-0124234, (= MASTER OT J082039.64-012423.4), ATEL 7636 discovered 2015/06/12.692 by MASTER robotic Net
Found in MCG +00-22-3 at R.A. = 08h20m39s.64, Decl. = -01°24'23".4 (= PGC 1119249)
Located 15" east and 20" north of the center of MCG +00-22-3 (Discovery image)
Mag 16.7:6/12, Type unknown (References: CBAT TOCP)

PSN J15044078+1237436, CBAT TOCP discovered 2015/06/16.028 by Ron Arbour
Found in NGC 5837 at R.A. = 15h04m40s.78, Decl. = +12°37'43".6
Located 3" east and 16" south of the center of NGC 5837 (Discovery image) (Ron Arbour image) (Ron Arbour image) (Martin Mobberley image) (Ron Arbour image) (Ron Arbour image)
Mag 17.5:6/16, Type IIn (z=0.028723) (References: ATEL 7690; SN 2014ac)

PSN J13522365+2131579 (= SNhunt289), CBAT TOCP discovered 2015/06/14.260 by Catalina Real-Time Transient Survey and Stan Howerton
Found in UGC 8781 at R.A. = 13h52m23s.65, Decl. = +21°31'57".9
Located 13" east and 24" south of the center of UGC 8781 (Discovery image)
Mag 19.7:6/14, Type unknown

PSN J21401802-0704107 (= MASTER OT J214018.02-070410.7), ATEL 7632 discovered 2015/06/12.052 by MASTER robotic Net
Found in PGC 1024917 at R.A. = 21h40m18s.02, Decl. = -07°04'10".7
Located 1" east and 10" south of the center of PGC 1024917 (Discovery image) (Joseph Brimacombe image)
Mag 18.6:6/16 (17.9:6/12), Type Ia (z=0.05) (References: CBAT TOCP, ATEL 7640)

PSN J22223287-1852243, (= MASTER OT J222232.87-185224.3), ATEL 7632 discovered 2015/06/14.090 by MASTER robotic Net
Found in IC 5210 at R.A. = 22h22m32s.87, Decl. = -18°52'24".3
Located 25".3 east and 13".4 south of the center of IC 5210 (Discovery image)
Mag 17.8:6/14, Type Ia (z=0.024) (References: CBAT TOCP, ATEL 7640)

PSN J16535250+3849309, CBAT TOCP discovered 2015/06/14.730 by THU-NAOC Transient Survey (TNTS)
Found in an anonymous galaxy at R.A. = 16h53m52s.50, Decl. = +38°49'30".9
Located 0" east and 1" north of the center of the host galaxy (Discovery image)
Mag 18.7:6/14, Type unknown

PSN J19535968+4956078, CBAT TOCP discovered 2015/06/12.010 by Paolo Campaner (ISSP)
Found in UGC 11494 at R.A. = 19h53m59s.68, Decl. = +49°56'07".8
Located 36" west and 8" south of the center of UGC 11494 (Discovery image) (William Wiethoff image) (Joel Nicolas image) (Giancarlo Favero image)
Mag 19.0:6/21 (18.2:6/12), Type IIP (References: ATEL 7712)

PSN J17162885+0625585, CBAT TOCP discovered 2015/06/12.006 by Jaroslaw Grzegorzek
Found in UGC 10779 at R.A. = 17h16m28s.85, Decl. = +06°25'58".5
Located 26" west and 3" north of the center of UGC 10779 (Discovery image) (R. Belligoli and F.Castellani image) (William Wiethoff image)
Mag 18.1:6/12, Type IIb (z=0.023) (References: ATEL 7640)

ASASSN-15la (= PS15bdj), ATEL 7626 discovered 2015/06/11.330 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in NGC 5517 at R.A. = 14h12m51s.22, Decl. = +35°42'39".8
Located 0".3 west and 0".6 north of the center of NGC 5517 (Discovery image) (Seiichiro Kiyota image) (PS1 image)
Mag 16.8:7/4 (16.3:6/22), Type Ia (z=0.030) (References: ATEL 7627)

ASASSN-15kz (= PS15axg), ATEL 7625 discovered 2015/06/12.070 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in IC 4303 at R.A. = 13h37m18s.67, Decl. = -28°39'23".5
Located 6".0 east and 5".2 north of the center of IC 4303 (Discovery image) (Seiichiro Kiyota image) (Joseph Brimacombe image) (PS1 image)
Mag 15.7:6/23 (15.5:6/21), Type IIP (z=0.008022) (References: ATEL 7630)

ASASSN-15kx, ATEL 7621 discovered 2015/06/10.570 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in MCG +6-49-1 at R.A. = 22h16m11s.81, Decl. = +37°28'26".1 (= PGC 68459)
Located 1".3 west and 2" south of the center of MCG +6-49-1 (Discovery image)
Mag 16.1:6/21, Type Ia (z=0.018) (References: ATEL 7623)

PSN J14432601+5725412 (= MASTER OT J144326.01+572541.2), ATEL 7618 discovered 2015/06/09.851 by MASTER robotic Net
Found in PGC 52589 at R.A. = 14h43m26s.01, Decl. = +57°25'41".2
Located 3".1 east and 14".4 south of the center of PGC 52589 (Discovery image)
Mag 18.6:6/9, Type Ia (z=0.06797) (References: ATEL 7623, CBAT TOCP)

PSN J14372160+3634018 (= PS15bae), CBAT TOCP discovered 2015/06/10.953 by Ron Arbour
Found in NGC 5695 at R.A. = 14h37m21s.60, Decl. = +36°34'01".8
Located 7" west and 3" south of the center of NGC 5695 (Discovery image) (Masanori Mizutani image) (Gianluca Masi image) (Ron Arbour image) (Giancarlo Cortini image) (David Storey image) (Martin Mobberley image) (JM Llapasset image) (PS1 image) (Esteban Aguilar image)
Mag 17.0:6/30 (16.3:6/22), Type II (Padova-Asiago spectrum) (References: ATEL 7619, ATEL 7641)

ASASSN-15kq, ATEL 7608 discovered 2015/06/06.950 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 06h48m43s.87, Decl. = -54°12'16".7
Located 1".0 east and 0".9 south of the center of the host galaxy (Discovery image)
Mag 16.4:6/6, Type Ia (References: (ATEL 7610 corrected) ATEL 7613)

PSN J14462576+0526388, CBAT TOCP discovered 2015/06/07.590 by THU-NAOC Transient Survey (TNTS)
Found in an anonymous galaxy at R.A. = 14h46m25s.76, Decl. = +05°26'38".8
Located 1" east and 4" north of the center of the host galaxy (Discovery image)
Mag 19.4:6/7, Type unknown

ASASSN-15kp, ATEL 7604 discovered 2015/06/07.990 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in PGC 158354 at R.A. = 12h58m41s.76, Decl. = -32°07'25".10 (= AM 1255-315)
Located 2" west and 7".9 south of the center of PGC 158354 (Discovery image) (Joseph Brimacombe image) (Roland Santallo image)
Mag 16.6:7/19 (15.4:6/21), Type Ia (z=0.0174) (References: ATEL 7605)

2015P (= PSN J12503072-1052405), CBET 4126 discovered 2015/06/07.385 by Stu Parker (BOSS)
Found in MCG -2-33-20 at R.A. = 12h50m30s.72, Decl. = -10°52'40".5
Located 19" east and 84" south of the center of MCG -2-33-20 (Discovery image) (Gianluca Masi image)
Mag 18.2:6/7, Type IIP (z=0.008) (References: ATEL 7640, ATEL 7692, CBAT TOCP; SN PS15akx, 2008aq)

PSN J12415045-0710122 (= ASASSN-15kn), CBAT TOCP discovered 2015/06/06.850 by F. Ciabattari, E. Mazzoni and M. Rossi (ISSP)
Found in PGC 42600 at R.A. = 12h41m50s.45, Decl. = -07°10'12".2
Located 3".8 west and 2".8 south of the center of PGC 42600 (Discovery image) (ASASSN image) (Gianpiero Locatelli image) (Joseph Brimacombe image) (Joel Nicolas image) (Gianluca Masi image) (Adriano Valvasori image)
Mag 15.7:6/12, Type Ia (References: ATEL 7602 ATEL 7610)

ASASSN-15kk, ATEL 7593 discovered 2015/06/05.280 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in UGC 4883 at R.A. = 09h18m31s.05, Decl. = +74°19'07".0
Located 4".5 west and 1".6 south of the center of UGC 4883 (Discovery image) (Gianluca Masi image) (Gianpiero Locatelli image) (Gregor Krannich image) (JM Llapasset image)
Mag 14.4:6/20 (14.3:6/8), Type Ia (z=0.013) (References: ATEL 7609)

ASASSN-15kj, ATEL 7585 discovered 2015/05/31.430 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 297-G37 at R.A. = 01h58m11s.53, Decl. = -39°32'49".7
Located 14".7 west and 8".0 south of the center of ESO 297-G37 (Discovery image) (Joseph Brimacombe image)
Mag 16.4:6/20 (15.6:6/3), Type Ic (z=0.018453) (References: ATEL 7692)

PSN J08013975+1544019 (= MASTER OT J080139.75154401.9), ATEL 7577 discovered 2015/05/27.694 by MASTER robotic Net
Found in NGC 2507 at R.A. = 08h01m39s.75, Decl. = +15°44'01".9
Located 36".2 east and 86".4 north of the center of NGC 2507 (Discovery image)
Mag 15.4:5/27, Type unknown (References: CBAT TOCP)

ASASSN-15kg, ATEL 7574 discovered 2015/05/27.990 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 08h40m12s.01, Decl. = -04°35'31".0
Located 4".8 east and 5".9 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 16.3:5/29 (16.0:5/27), Type Ia-91T (z=0.014) (References: ATEL 7590)

ASASSN-15ke (= iPTF15apg), ATEL 7568 discovered 2015/05/26.350 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h25m44s.81, Decl. = +59°21'10".1
Located 3".2 east and 0".7 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Masanori Mizutani image) (Gregor Krannich image)
Mag 17.0:5/26, Type Ia (z=0.045359) (References: ATEL 7571, ATEL 7573)

iPTF15ayt, ATEL 7567 discovered 2015/05/26.320 by Palomar Transient Factory at R.A. = 14h56m27s.85, Decl. = +18°22'24".7 Mag 18.6:5/26, Type II (z=0.045715) (References: ATEL 7581)

MASTER OT J225624.49-333456.0, ATEL 7566 discovered 2015/05/26.037 by MASTER robotic Net at R.A. = 22h56m24s.49, Decl. = -33°34'56".0 Mag 18.2:5/26, Type unknown (Discovery image)

KISS15q, ATEL 7562 discovered 2015/05/19.500 by Kiso Supernova Survey (KISS) collaboration at R.A. = 13h12m53s.70, Decl. = +28°47'55".3 Mag 20.6:5/19, Type Ia (z=0.18)

PS15ann, ATEL 7561 discovered 2015/05/24.425 by PS1 Science consortium
Found in ESO 583-G7 at R.A. = 15h49m53s.51, Decl. = -21°02'50".6
Located 0" east and 0" north of the center of ESO 583-G7 (Discovery image) (Joseph Brimacombe image)
Mag 17.9:5/30, Type II (z=0.02) (offset 14.74) (References: ATEL 7611)

MASTER OT J080658.36+250049.7, ATEL 7560 discovered 2015/05/25.777 by MASTER robotic Net
Found in PGC 1722882 at R.A. = 08h06m58s.36, Decl. = +25°00'49".7
Located 14".2 east and 0".9 south of the center of PGC 1722882 (Discovery image) (Gianpiero Locatelli image)
Mag 16.6:5/25, Type unknown

CSS150524:231651+182833, CRTS SN page discovered 2015/05/24.000 by Catalina Real-Time Transient Survey
Found in NGC 7572 at R.A. = 23h16m51s.44, Decl. = +18°28'33".1
Located 0" east and 0" north of the center of NGC 7572 (Discovery image) (Joseph Brimacombe image)
Mag 18.6:5/26 (18.1:5/24), Type Ia (z=0.044) (References: ATEL 7569)

PSN J05024246-2527349 (= Gaia15afv), CBAT TOCP discovered 2015/05/22.277 by Stu Parker (BOSS)
Found in PGC 778679 at R.A. = 05h02m42s.46, Decl. = -25°27'34".9
Located 3" east and 10" north of the center of PGC 778679 (Discovery image (mirror))
Mag 18.2:5/23 (17.7:5/22), Type unknown

PSN J12040516+1404059 (= Gaia15agh), CBAT TOCP discovered 2015/05/20.560 by THU-NAOC Transient Survey (TNTS)
Found in CGCG 69-37 at R.A. = 12h04m05s.16, Decl. = +14°04'05".9 (= PGC 38162)
Located 4" west and 10" north of the center of CGCG 69-37 (Discovery image) (Gianluca Masi image) (Masanori Mizutani image) (Mercator telescope image)
Mag 17.4:5/26, Type Ia (z=0.044) (References: ATEL 7556, ATEL 7594, ATEL 7641)

ASASSN-15jt, ATEL 7551 discovered 2015/05/22.340 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 13h08m09s.13, Decl. = +27°49'34".9
Located 0".3 east and 0".9 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.1:5/22, Type Ia (z=0.023) (References: ATEL 7558)

ASASSN-15js, ATEL 7548 discovered 2015/05/21.210 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in 2MFGC 8437 at R.A. = 10h50m38s.35, Decl. = +12°17'49".2
Located 0".8 east and 2".9 north of the center of 2MFGC 8437 (Discovery image) (Joseph Brimacombe image) (PS1 image)
Mag 17.4:6/19 (16.2:5/23), Type Ia (z=0.021) (References: ATEL 7609)

ASASSN-15jp, ATEL 7546 discovered 2015/05/21.080 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in NGC 3157 at R.A. = 10h11m38s.99, Decl. = -31°39'04".0
Located 43".9 west and 29".7 south of the center of NGC 3157 (Discovery image) (Joseph Brimacombe image)
Mag 15.4:5/22, Type II (z=0.009477) (References: ATEL 7557)

PSN J12204403+1650448, CBAT TOCP discovered 2015/05/12.650 by THU-NAOC Transient Survey (TNTS)
Found in an anonymous galaxy at R.A. = 12h20m44s.03, Decl. = +16°50'44".8
Located 1" west and 1" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 18.5:5/12, Type unknown

ASASSN-15jo, ATEL 7540 discovered 2015/05/20.140 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 14h06m44s.67, Decl. = -34°27'17".4
Located 1".3 east and 0".9 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 16.3:6/13 (15.4:5/31), Type Ia (z=0.014) (References: ATEL 7553)

ASASSN-15jm, ATEL 7536 discovered 2015/05/19.410 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 17h21m09s.19, Decl. = +25°34'55".5
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Kunihiro Shima image)
Mag 15.7:6/12, Type Ia (z=0.05) (offset 1.3) (References: ATEL 7550)

PSN J16025128+4713292 (= PS15aoq), CBAT TOCP discovered 2015/05/19.701 by Zhangwei Jin and Xing Gao
Found in UGC 10156 at R.A. = 16h02m51s.28, Decl. = +47°13'29".2
Located 15".7 east and 3".3 north of the center of UGC 10156 (Discovery image) (Maurice Gavin image) (Masanori Mizutani image) (William Wiethoff image) (Gianluca Masi image) (Gianpiero Locatelli image) (PS1 image) (Kunihiro Shima image) (JM Llapasset image)
Mag 16.2:6/26 (15.6:5/24), Type Ia (z=0.020254) (References: ATEL 7544, ATEL 7611)

PSN J14485091+1228550 (= SNhunt288), CBAT TOCP discovered 2015/05/19.330 by Catalina Real-Time Transient Survey
Found in an anonymous galaxy at R.A. = 14h48m50s.91, Decl. = +12°28'55".0 (near NGC 5762)
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 20.0:5/22 (19.7:5/19), Type unknown

ASASSN-15jl (= PS15aol), ATEL 7527 discovered 2015/05/13.390 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h22m41s.12, Decl. = +50°58'35".4
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (PS1 image)
Mag 17.5:5/31 (17.2:5/13), Type Ia (offset 0.8) (z=0.034746) (References: ATEL 7535)

MASTER OT J111357.37-465849.1, ATEL 7525 discovered 2015/05/17.857 by MASTER robotic Net
Found in an anonymous galaxy at R.A. = 11h13m57s.37, Decl. = -46°58'49".1
Located 0" east and 25".5 north of the center of the host galaxy (Discovery image)
Mag 17.5:5/17, Type unknown

ASASSN-15ji, ATEL 7522 discovered 2015/05/17.380 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 536-G8 at R.A. = 23h35m14s.36, Decl. = -22°44'24".1
Located 0" east and 0" north of the center of ESO 536-G8 (Discovery image) (Joseph Brimacombe image)
Mag 17.5:5/24 (17.2:5/17), Type Ia (z=0.055) (offset 13.5) (References: ATEL 7640)

ASASSN-15jg, ATEL 7518 discovered 2015/05/15.150 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 10h46m55s.64, Decl. = -02°19'29".9
Located 0" east and 0" north of the center of the host galaxy (Discovery image)
Mag 17.8:6/28 (16.9:5/24), Type Ia (z=0.036) (offset 4) (References: ATEL 7519)

ASASSN-15jf, ATEL 7518 discovered 2015/05/12.400 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 22h25m11s.08, Decl. = -50°23'47".5
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.0:5/17 (16.5:5/12), Type Ia (z=0.036) (offset 1.6) (References: ATEL 7692)

PSN J16283836+3932552 (= PS15aot), CBAT TOCP discovered 2015/05/15.271 by R. Gagliano, D. Post, Jack Newton, and Tim Puckett
Found in NGC 6166 at R.A. = 16h28m38s.36, Decl. = +39°32'55".2
Located 1".5 east and 8".6 south of the center of NGC 6166 (Discovery image) (J. Camarasa image) (Paolo Campaner image) (Gianluca Masi image) (Andre Mantero image) (Manfred Mrotzek image) (Juanjo Gonzalez image) (Francisco Soldán image) (Manfred Mrotzek image) (Masanori Mizutani image) (PS1 image) (Kunihiro Shima image)
Mag 17.5:6/12 (16.3:5/20), Type Ia-91bg (z=0.03) (References: ATEL 7528, ATEL 7533; SN 2009eu)

ASASSN-15jb, ATEL 7507 discovered 2015/05/13.370 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 11h20m06s.40, Decl. = +34°07'43".0
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Gianpiero Locatelli image)
Mag 17.7:5/17 (17.2:5/13), Type Ia (z=0.03566) (References: ATEL 7510, 7511, 7512)

MASTER OT J174008.23+374114.0, ATEL 7505 discovered 2015/05/13.748 by MASTER robotic Net
Found in CGCG 199-6 at R.A. = 17h40m08s.23, Decl. = +37°41'14".0 (= CGCG 1738.4+3742)
Located 19".8 east and 7".3 north of the center of CGCG 199-6 (Discovery image) (Juan-Luis Glez. Carballo image) (Kunihiro Shima image)
Mag 17.7:5/13, Type unknown

2015M (= PSN J13003230+2758411) (= CSS150521:130032+275841) (= KISS15n) (= PS15apc), CBET 4123 discovered 2015/05/13.520 by Koichi Itagaki
Found in an anonymous galaxy at R.A. = 13h00m32s.30, Decl. = +27°58'41".1
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Zhijian Xu, Xing Gao image prediscovery) (Andrea Mantero image) (Nick James image) (Seiichiro Kiyota image) (Gianluca Masi image) (J. Camarasa image) (Masanori Mizutani image) (CRTS image) (Paolo Corelli image) (SWIFT image) (PS1 image) (JM Llapasset image) (T. Yusa image) (T. Nouchi image)
Mag 16.9:6/24 (15.66:5/21), Type Ia-91T (z=0.023) (offset 7.7) (References: ATEL 7528, ATEL 7529, ATEL 7532, CBAT TOCP; SN PSN J13004114+2759518)

ASASSN-15ja, ATEL 7502 discovered 2015/05/13.430 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 113-G18 at R.A. = 01h09m39s.03, Decl. = -61°19'58".3
Located 0" east and 0" north of the center of ESO 113-G18 (Discovery image)
Mag 16.3:5/13, Type Ia (z=0.026321) (offset 1.5) (ESO spectrum)

PSN J18285823+2254106 (= PS15apj), CBAT TOCP discovered 2015/05/12.042 by Fabio Briganti (ISSP)
Found in NGC 6641 at R.A. = 18h28m58s.23, Decl. = +22°54'10".6
Located 8" east and 3" south of the center of NGC 6641 (Discovery image) (Massimo Caimmi image) (Joseph Brimacombe image) (Gianluca Masi image) (Paolo Campaner image) (PS1 image)
Mag 18.4:6/3 (16.3:5/12), Type IIb (z=0.014) (References: ATEL 7519)

ASASSN-15ir, ATEL 7493 discovered 2015/05/08.020 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 569-G9 at R.A. = 10h48m30s.30, Decl. = -21°38'07".9
Located 12".1 east and 3".0 south of the center of ESO 569-G9 (Discovery image) (Joseph Brimacombe image)
Mag 16.6:5/11, Type II (z=0.012) (References: ATEL 7519)

ASASSN-15il, ATEL 7491 discovered 2015/05/11.310 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h57m08s.15, Decl. = -12°40'23".9
Located 0".5 east and 1".7 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 16.5:5/11, Type Ia (z=0.023316) (References: ATEL 7497)

ASASSN-15ik, ATEL 7491 discovered 2015/05/11.240 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 11h02m04s.75, Decl. = +03°30'02".7
Located 1".4 west and 0".4 south of the center of the host galaxy (Discovery image) (Gianpiero Locatelli image)
Mag 16.8:5/12 (16.6:5/11), Type IIn (z=0.0348) (References: ATEL 7497, ATEL 7531)

PSN J12333187+2747007, CBAT TOCP discovered 2015/05/08.650 by THU-NAOC Transient Survey (TNTS)
Found in KUG 1231+280 at R.A. = 12h33m31s.87, Decl. = +27°47'00".7
Located 1" east and 3" north of the center of KUG 1231+280 (Discovery image) (Joseph Brimacombe image unconfirmed)
Mag 19.4:5/8, Type unknown

ASASSN-15ih (= Gaia15afw), (= PSN J09595957-0253167), ATEL 7483 discovered 2015/05/04.090 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 09h59m59s.57, Decl. = -02°53'16".4
Located 1".2 west and 8".3 north of the center of the host galaxy (Discovery image) (Seiichiro Kiyota image) (Andrea Mantero image) (Gianpiero Locatelli image) (Joseph Brimacombe image) (William Wiethoff image) (JM Llapasset image) (Stan Howerton image)
Mag 17.4:5/24 (16.0:5/11), Type Ia (z=0.019827) (References: ATEL 7531 CBAT TOCP)

PS15ahs (= Gaia15afd), ATEL 7471 discovered 2015/05/02.523 by PS1 Science consortium
Found in MCG +7-37-11 at R.A. = 17h59m29s.77, Decl. = +43°23'24".2
Located 1".5 east and 4" south of the center of MCG +7-37-11 (Discovery image) (Joseph Brimacombe image) (Masanori Mizutani image) (Andrea Mantero image) (Jordi Camarasa image) (Manfred Mrotzek image) (Kunihiro Shima image)
Mag 17.0:6/12 (15.9:5/9), Type Ia (offset 6.71) (z=0.031) (References: ATEL 7477, ATEL 7611)

2015I (= PSN J07174570+2320406), CBET 4106 discovered 2015/05/02.482 by T. Noguchi
Found in NGC 2357 at R.A. = 07h17m45s.70, Decl. = +23°20'40".6
Located 66" east and 43" south of the center of NGC 2357 (Discovery image)
Mag 14.0:5/19, Type Ia (z=0.007589) (References: ATEL 7476, CBAT TOCP; SN 2010bj)
Supernova 2014I images sub-page

ASASSN-15id, ATEL 7461 discovered 2015/04/29.280 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 19h38m30s.11, Decl. = -79°25'51".9
Located 13".0 west and 26".7 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image)
Mag 17.0:5/2 (16.0:4/29), Type unknown

PSN J19435637+4758301, CBAT TOCP discovered 2015/04/28.398 by R. Gagliano, D. Post, Jack Newton, and Tim Puckett
Found in UGC 11469 at R.A. = 19h43m56s.37, Decl. = +47°58'30".1
Located 8".5 east and 18".8 south of the center of UGC 11469 (Discovery image) (Gianluca Masi image) (Joseph Brimacombe image)
Mag 18.8:5/7 (17.9:4/28), Type unknown

ASASSN-15ic (= Gaia15afn) ATEL 7455 discovered 2015/04/27.000 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 06h14m51s.38, Decl. = -42°47'56".0
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.0:5/17 (16.4:4/28), Type Ia (z=0.025) (offset 29) (References: ATEL 7458)

MASTER OT J074610.09-712224.9, ATEL 7451 discovered 2015/04/26.752 by MASTER robotic Net
Found in PGC 269232 at R.A. = 07h46m10s.09, Decl. = -71°22'24".9
Located 1".4 east and 14".9 north of the center of PGC 269232 (Discovery image) (Joseph Brimacombe image)
Mag 16.6:4/29 (16.3:4/26), Type Ia (z=0.019) (References: ATEL 7458)

ASASSN-15hz, ATEL 7450 discovered 2015/04/26.380 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 22h29m38s.08, Decl. = -65°27'56".2
Located 1".4 east and 3".3 south of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Roland Santallo image)
Mag 17.1:5/13 (16.7:4/28), Type Ia (z=0.033) (References: ATEL 7458)

ASASSN-15hy (= PS15aou), ATEL 7450 discovered 2015/04/25.210 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 20h10m02s.35, Decl. = -00°44'21".3
Located 11".2 west and 6".3 north of the center of the host galaxy (Discovery image) (Marc Deldem image) (Marc Deldem image) (PS1 image) (Marc Deldem image) (Joel Nicolas image)
Mag 16.7:6/25 (15.7:5/8), Type Ia-pec (z=0.025) (References: ATEL 7452)

ASASSN-15hx, ATEL 7447 discovered 2015/04/26.180 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 13h43m16s.69, Decl. = -31°33'21".5
Located 0" east and 0" north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 13.1:5/11, Type Ia (offset 4) (References: ATEL 7452)

PSN J12060084+2036183 (= SNhunt287), CBAT TOCP discovered 2015/04/25.190 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 4098 at R.A. = 12h06m00s.84, Decl. = +20°36'18".3
Located 43" west and 4" south of the center of NGC 4098 (Discovery image) (Stan Howerton image) (Joseph Brimacombe image) (William Wiethoff image) (Andrea Mantero image) (Gianluca Masi image) (Stan Howerton image)
Mag 18.7:5/11 (18.0:5/7), Type unknown

2015K (= PSN J23355226+2336521) (= Gaia15aer), CBET 4116 discovered 2015/04/25.786 by Koichi Itagaki
Found in NGC 7712 at R.A. = 23h35m52s.26, Decl. = +23°36'52".1
Located 8" east and 15" south of the center of NGC 7712 (Discovery image) (T. Noguchi image) (Kunihiro Shima image) (Joseph Brimacombe image) (Gianluca Masi image)
Mag 17.0:5/4 (16.1:4/26), Type Ic (z=0.010184) (References: CBAT TOCP ATEL 7456, ATEL 7467)

ASASSN-15hs, ATEL 7444 discovered 2015/04/24.180 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 15h33m34s.31, Decl. = -78°07'23".5
Located 2".2 east and 1".7 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 16.6:4/24, Type IIn (z=0.009) (References: ATEL 7458)

PSN J13145290+3442128 (= CSS150423:131453+344213), CBAT TOCP discovered 2015/04/23.320 by Catalina Real-Time Transient Survey
Found in MCG +6-29-66 at R.A. = 13h14m52s.90, Decl. = +34°42'12".8
Located 22" west and 4" north of the center of MCG +6-29-66 (Discovery image) (Andrea Mantero image) (Joseph Brimacombe image) (Kunihiro Shima image) (Masanori Mizutani image) (PS1 image) (Paolo Corelli image)
Mag 19.2:5/16 (17.5:4/23), Type Ia (z=0.052850) (References: ATEL 7476)

ASASSN-15hf, ATEL 7406 discovered 2015/04/17.050 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 375-G41 at R.A. = 10h29m30s.76, Decl. = -35°15'35".2
Located 2".9 west and 0".3 north of the center of ESO 375-G41 (Discovery image) (Joseph Brimacombe image)
Mag 16.4:6/13 (14.2:5/3), Type Ia (z=0.005) (References: ATEL 7412)

ASASSN-15he, ATEL 7400 discovered 2015/04/12.340 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 69-G5 at R.A. = 16h31m33s.50, Decl. = -67°52'04".2
Located 10".4 west and 0".4 north of the center of ESO 69-G5 (Discovery image) (Joseph Brimacombe image) (Roland Santallo image)
Mag 17.0:5/13 (16.6:4/12), Type Ia (z=0.014) (References: ATEL 7412)

ASASSN-15hc (= PS15adf), ATEL 7398 discovered 2015/04/14.292 by All Sky Automated Survey for SuperNovae (ASAS-SN); PS1 SN page
Found in an anonymous galaxy at R.A. = 10h24m38s.82, Decl. = -02°59'07".8
Located 5".1 west and 0".3 south of the center of the host galaxy (Discovery image) (PS1 image) (Seiichiro Kiyota image) (Joseph Brimacombe image) (Kunihiro Shima image) (Gianpiero Locatelli image)
Mag 16.4:4/22, Type Ia (z=0.031) (References: ATEL 7405, ATEL 7411)

PSN J09023787+2556042 (= Gaia15aet), ATEL 7366 discovered 2015/04/11.184 by Lick Observatory Supernova Search
Found in NGC 2735 at R.A. = 09h02m37s.87, Decl. = +25°56'04".2
Located 10" west and 0" south of the center of NGC 2735 (Discovery image) (Giancarlo Cortini prediscovery image) (Giancarlo Cortini image) (Jaroslaw Grzegorzek prediscovery image) (Gianpiero Locatelli image) (Andrea Mantero image) (Manfred Mrotzek image) (JM Llapasset image) (Kunihiro Shima image) (Marco Russiani image)
Mag 17.0:4/26 (15.9:4/18), Type IIb (z=0.008) (References: ATEL 7368, ATEL 7611, CBAT TOCP)

PSN J17492705+3608360, ATEL 7345 discovered 2015/04/04.516 by Lick Observatory Supernova Search
Found in UGC 11000 at R.A. = 17h49m27s.05, Decl. = +36°08'36".0
Located 5" east and 7" south of the center of UGC 11000 (Discovery image) (JM Llapasset image) (Masanori Mizutani image) (Kunihiro Shima image) (Maurice Gavin image) (Manfred Mrotzek image) (Joel Nicolas image) (SWIFT image) (Joel Nicolas image) (Thomas Langhans image)
Mag 16.3:6/22 (15.1:4/15), Type IIP (z=0.004566) (SWIFT light curve) (References: ATEL 7347, ATEL 7353, CBAT TOCP)

ASASSN-15fs (= Gaia15afh) (= PS15aij), ATEL 7296 discovered 2015/03/25.560 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in CGCG 229-10 at R.A. = 18h58m40s.82, Decl. = +43°28'07".9
Located 0" east and 0" north of the center of CGCG 229-10 (Discovery image) (Joseph Brimacombe image) (PS1 image)
Mag 18.4:5/17 (16.6:3/25), Type Ia (z=0.02902) (offset 2.5) (References: ATEL 7306)

PSN J15053007+0138024 (= SNhunt281), CBAT TOCP discovered 2015/03/16.490 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 5839 at R.A. = 15h05m30s.07, Decl. = +01°38'02".4
Located 39" east and 3" south of the center of NGC 5839 (Discovery image)
Mag 17.1:6/5 (13.6:4/3), Type Ia-91bg (z=0.004069) (References: ATEL 7251)
PSN J15053007+0138024 images sub-page

2015F (= PSN J07361576-6930230), CBET 4081 discovered 2015/03/09.789 by Berto Monard
Found in NGC 2442 at R.A. = 07h36m15s.76, Decl. = -69°30'23".0
Located 40" west and 84" north of the center of NGC 2442 (Discovery image)
Mag 16.2:6/6 (12.9:3/22), Type Ia (z=0.004) (References: ATEL 7209, ATEL 7220, CBAT TOCP; SN 1999ga)
2015F images sub-page

PSN J09093496+3307204 (= PSN J09093506+3307221) (= iPTF13efv) (= SNhunt275), CBAT TOCP discovered 2015/02/07.390 by Catalina Real-Time Transient Survey and Stan Howerton
Found in NGC 2770 at R.A. = 09h09m34s.96, Decl. = +33°07'20".4
Located 16" east and 4" south of the center of NGC 2770 (Discovery image)
Mag 15.8:5/15 (15.4:5/21), Type LBV (z=0.0064) (References: ATEL 7042, 7409, 7514, 7515, 7517, 7541, 7543, PSN J09093506+3307221; SN 2008D, 2007uy, 1999eh)
PSN J09093506+3307221 images sub-page

PSN J13522411+3941286, CBAT TOCP discovered 2015/01/09.897 by Zhangwei Jin and Xing Gao
Found in NGC 5337 at R.A. = 13h52m24s.11, Decl. = +39°41'28".6
Located 12".2 east and 14".1 north of the center of NGC 5337 (Discovery image) (Kunihiro Shima image) (E. Conseil image) (Masanori Mizutani image) (Stan Howerton image) (Wim Cuppens image) (Jaroslaw Grzegorzek image) (Marc Deldem image) (Marc Deldem image) (Marc Deldem image) (Marc Deldem image) (JM Llapasset image) (Paolo Campaner image) (JM Llapasset image) (JM Llapasset image) (LOSS image) (Manfred Mrotzek image) (JM Llapasset image)
Mag 17.1:6/24 (15.6:2/19), Type IIn (z=0.007222) (References: ATEL 6939)

archive.gif For Supernovae which have faded below 18th magnitude,
you will have to look in the archives
Other supernovae from 2015 Other Extragalactic Novae from 2015 Unconfirmed objects from 2015
Supernovae from 2014 Extragalactic Novae from 2014 Unconfirmed objects from 2014
Supernovae from 2013 Extragalactic Novae from 2013 Unconfirmed objects from 2013


Do you have a Supernova image you are willing to share with others? Please tell me about it! Don't be a data miser, share your data with others! I prefer to link to images already at a location on the web, but if you send me an image (jpeg or gif preferred) I will post and index it.

I plan to report only "bright" Supernova (above mag 17.5) on this page. Note that you are going to need a big telescope to find most of these things, for instance, a "Mag 14" SN probably won't be visible to the eye in anything less than a 10" telescope. A CCD, however, can often detect a Mag 14 object with a much smaller objective. Those SN which are easily findable by amateurs (above mag 14.0) will be in red.

The format is as follows:

If possible I will create an icon for every bright supernova. This icon will be black on a white background and mirror imaged left to right so that North is up and East is left. The exception being a color image, which will have he same orientation. All icons will be less than 100x100 pixels in size so that they load quickly.


Please send feedback to David Bishop dbishop@vhdl.org.   This web page is brought to you by the Astronomy Section of the Rochester Academy of Sciences.   This page is supported by Tenagra Observatory.   If you use this page in your research, please reference arXiv:1103.5165.