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All active supernova over mag 17.0
NameMagTypeHost
AT2019wfw 0.0*unknone
AT2020dgj11.2Novanone
2020ue11.8IaNGC 4636
AT2020dgm12.3RCrBnone
AT2020bsh14.5unknone
2019yvr14.5*IbNGC 4666
2020oi14.6IcM100
ASASSN-19acc14.7*IInanonymous
AT2019zhd14.9LBV?M31
AT2020bzf15.1unknone
2020alh15.3*IaNGC 5419
ASASSN-20ag15.5*IaNGC 5333
AT2020cts15.6unknone
AT2020bwa15.6unknone
AT2020yj15.7*unknone
AT2020azg15.7unkAGC 221477
M1646415.8unknone
AT2020dim15.8unknone
AT2020dhs15.8unknone
2019yvq15.8Ib/cNGC 4441
AT2020cld16.0unknone
AT2020dml16.1unknone
AT2020czl16.1unknone
AT2020blj16.1unknone
AT2020bre16.2unknone
AT2020blu16.2*unknone
AT2020adb16.2*unknone
ASASSN-20ao16.2unkanonymous
2020se16.2*IaIC 1967
2020ags16.2Ianone
AT2020yh16.3*unknone
AT2020dkb16.3unknone
AT2020cmi16.3unknone
AT2020bwu16.3unknone
2020ayh16.3IaUGC 11430
2019wkk16.3*IaLEDA 135004
AT2020bzy16.4unkanonymous
2020aze16.4IINGC 3318
AT2020gk16.5*unknone
AT2020bxc16.5unknone
AT2020bvr16.5unknone
AT2020bdv16.5unkanonymous
2020bio16.5IINGC 5371
2020aiv16.5*Ianone
2019xhb16.5*IIanonymous
AT2020ie16.6*unknone
AT2020dgs16.6unknone
AT2020cih16.6unkESO 215-G13
AT2020bxq16.6unknone
AT2019zhn16.6*unknone
2019zhs16.6*Ia-91TIC 4552
AT2020dkc16.7unknone
AT2020ddu16.7unknone
AT2020byw16.7unknone
ASASSN-20bu16.7IIanonymous
AT2020dlg16.8unknone
AT2020cri16.8unknone
AT2020bdu16.8unknone
AT2020bdo16.8unknone
AT2020azj16.8unkanonymous
ASASSN-19aea16.8*unkNGC 3395
2020vg16.8*IIIC 738
2020cvo16.8Ianone
2020bcq16.8IbNGC 5154
2020aoi16.8IaCGCG 292-067
AT2020yv16.9*unkFCC 036
AT2020cna16.9unkPGC 549147
AT2020ame16.9*unknone
AT2016blu16.9LBVNGC 4559
2020zj16.9*Ianone
ASASSN-20ah16.9Iaanonymous
2020ad16.9*IIIC 4351
2019upw16.9*IaNGC 109

* - 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 TNS and ATEL circulars.   These web pages have brought you the latest in supernovae data and images since April 1997.   22 years and counting.

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

News: AT2020cwh (Mag 11.0 in M66 (unconfirmed)) 2019zhd is a Mag 14 LBV in M31, 2020ue in NGC 4636 appears to be maxing out at Mag 11.8.   2020oi in M100 is now fading.   I just created isn_chat@googlegroups.com to replace isn_chat@yahoogroups.com.   For the year 2020, 2695 supernovae (308 CBAT, 2386 unconfirmed, and 1 other sources) have been reported. (15743 last year).   The brightest SN of the year 2020 are 2020ue (Mag 11.8), followed by 2020oi (Mag 13.2)

To post your discoveries, go to the TNS getting started page.   For supernovae light curves, look at the new Open supernova Catalog (see OSC links).   Latest Supernovae is now supported by Purdue University and maintains a new mirror hosted in the Department of Physics and Astronomy that is overseen by Dan Milisavljevic.   Purdue mirror page: http://www.physics.purdue.edu/brightsupernovae/.   New features: Modifed the sorted by name list to include removed objects and mark "non public" objects. All galactic objects (CV novae, etc) will be banished on a weekly basis to the boneyard.   Thanks for all of the images, I have been posting them on flickr.   Join the discussion! Facebook Supernova Enthusiasts Group.   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.   With the demise of of Yahoo Groups, I am moving isn_chat to Google groups.   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.  

AT2020dke (= GSNST-20af), TNS discovered 2020/02/25.935 by GSNST
Found in anonymous galaxy at R.A. = 14h45m30s.330, Decl. = +37°37'40".28
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 19.5:2/25, Type unknown

AT2020dht (= ASASSN-20cj), TNS discovered 2020/02/24.210 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in PGC 587284 at R.A. = 13h53m12s.461, Decl. = -40°21'49".57
Located 0".0 east and 0".0 north of the center of PGC 587284
Mag 17.8:2/24, Type unknown

2020cwd (= ASASSN-20bz), ATEL 13503 discovered 2020/02/19.200 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in PGC 481435 at R.A. = 06h06m59s.063, Decl. = -49°00'24".85
Located 0".0 east and 0".0 north of the center of PGC 481435 (Discovery image) (Joseph Brimacombe image)
Mag 17.4:2/19, Type Ibn (z=0.052) (References: AstroNote 2020-47, TNS)

AT2020cvg (= GOTO20hm), TNS discovered 2020/02/06.108 by GOTO
Found in UGC 7248 at R.A. = 12h14m37s.060, Decl. = +24°18'15".79
Located 0".0 east and 0".0 north of the center of UGC 7248
Mag 18.4:2/6, Type unknown (zhost=0.046500)

AT2020cug (= SNhunt427) TNS discovered 2020/02/17.238 by Catalina Real-Time Transient Survey and Mirco Villi
Found in an anonymous galaxy at R.A. = 08h50m35s.688, Decl. = -03°06'53".28
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image)
Mag 19.0:2/17, Type unknown

AT2020chs (= ASASSN-20bx) (= Gaia20axl), ATEL 13503 discovered 2020/02/11.800 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 02h12m39s.892, Decl. = -40°13'50".61
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image)
Mag 17.4:2/20 (17.0:2/11), Type unknown (References: TNS, Gaia observations)

2020cdr, TNS discovered 2020/02/09.488 by Stu Parker (BOSS)
Found in ESO 119-G13 at R.A. = 04h50m24s.230, Decl. = -61°20'49".30
Located 0".0 east and 0".0 north of the center of ESO 119-G13 (Discovery image) (Stu Parker closeup image) (Stu Parker image)
Mag 17.3:2/9, Type Ia (z=0.019) (zhost=0.019690) (References: AstroNote 2020-43)

2020bwr (= ASASSN-20bu), ATEL 13503 discovered 2020/02/03.610 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 16h34m59s.349, Decl. = +36°12'27".08
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 16.7:2/15, Type II (zhost=0.060637) (References: TNS)

2020bvc (= ASASSN-20bs), ATEL 13503 discovered 2020/02/04.620 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in UGC 9379 at R.A. = 14h33m57s.021, Decl. = +40°14'38".10
Located 0".0 east and 0".0 north of the center of UGC 9379 (Discovery image) (Joseph Brimacombe image)
Mag 17.0:2/4, Type Ic-BL (zhost=0.025235) (References: AstroNote 2020-37, AstroNote 2020-42, AstroNote 2020-45, ATEL 13496, ATEL 13509, TNS; SN 2013cu)

AT2020bql (= ASASSN-20bo), ATEL 13503 discovered 2020/02/02.260 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 06h18m40s.348, Decl. = -57°40'13".60
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image) (Roland Santallo image)
Mag 17.7:2/15, Type unknown (zhost=0.040074) (References: TNS)

AT2020bou (= ASASSN-20bn), ATEL 13503 discovered 2020/02/01.349 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 36-G15 at R.A. = 08h58m40s.059, Decl. = -73°19'31".75
Located 0".0 east and 0".0 north of the center of ESO 36-G15 (Discovery image) (Joseph Brimacombe image)
Mag 17.1:2/1, Type unknown (zhost=0.038473) (References: TNS; SN 2017dyu)

2020bkp (= ASASSN-20bm), ATEL 13503 discovered 2020/01/30.280 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 220-G19 at R.A. = 13h34m00s.446, Decl. = -50°29'55".98
Located 0".0 east and 0".0 north of the center of ESO 220-G19 (Discovery image)
Mag 17.0:1/30, Type II (z=0.012) (zhost=0.013231) (References: AstroNote 2020-33, TNS)

2020bio, TNS discovered 2020/01/29.769 by Koichi Itagaki
Found in NGC 5371 at R.A. = 13h55m37s.685, Decl. = +40°28'39".02
Located 25".6 west and 56".6 north of the center of NGC 5371 (Discovery image)
Mag 16.5:2/15 (15.9:1/30), Type II (zhost=0.008533) (References: ATEL 13432; SN 1994Y)
2020bio images sub-page

2020bij (= Gaia20anq), TNS discovered 2020/01/29.682 by Koichi Itagaki
Found in NGC 3463 at R.A. = 10h55m11s.681, Decl. = -26°08'24".46
Located 22".5 west and 0".9 north of the center of NGC 3463 (Discovery image)
Mag 17.9:1/30 (17.5:1/29), Type II (z=0.013) (zhost=0.013176) (References: AstroNote 2020-33, Gaia observations)

2020big (= ASASSN-20bl), ATEL 13503 discovered 2020/01/29.320 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 05h01m15s.791, Decl. = -14°01'27".58
Located 0".0 east and 0".0 north of the center of the host galaxy (Discovery image) (Joseph Brimacombe image)
Mag 17.7:1/29, Type Ibn (z=0.0245) (zhost=0.024467) (References: AstroNote 2020-36, TNS)

AT2020bdv (= GSNST-20ad), TNS discovered 2020/01/27.549 by GSNST
Found in an anonymous galaxy at R.A. = 11h29m43s.310, Decl. = +20°26'20".70
Located 0".0 east and 0".1 south of the center of the host galaxy (Odd Trondal image)
Mag 16.5:1/27, Type unknown (zhost=0.130600)

2020bcq (= ZTF20aajcdad), TNS discovered 2020/01/27.474 by Zwicky Transient Facility (ZTF)
Found in NGC 5154 at R.A. = 13h26m29s.652, Decl. = +36°00'31".16
Located 13".6 east and 6".0 south of the center of NGC 5154 (Paolo Campaner image) (Odd Trondal image) (Robert Spellman image)
Mag 16.8:2/6, Type Ib (z=0.018) (zhost=0.018610) (References: ATEL 13445, ZTF observations)

2020aze (= DLT20d), TNS discovered 2020/01/26.744 by DLT40
Found in NGC 3318 at R.A. = 10h37m15s.343, Decl. = -41°37'29".59
Located 2".6 west and 10".1 north of the center of NGC 3318 (Wim Cuppens image) (Grzegorz Duszanowicz image prediscovery (mirror)) (Roland Santallo image)
Mag 16.4:2/19, Type II (z=0.009) (References: AstroNote 2020-33; SN 2017ahn, 2000cl)

2020ayh (= Gaia20ale), TNS discovered 2020/01/25.180 by Gaia Photometric Science Alerts programme
Found in UGC 11430 at R.A. = 19h21m08s.160, Decl. = +43°19'43".21
Located 0".0 east and 0".0 north of the center of UGC 11430 (Paolo Campaner image) (Odd Trondal image)
Mag 16.3:2/15 (15.6:1/25), Type Ia (z=0.017) (References: Gaia observations; SN 2003is)

AT2020ati, TNS discovered 2020/01/16.343 by SGLF
Found in an anonymous galaxy at R.A. = 10h48m04s.020, Decl. = +39°23'27".35
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 19.6:1/16, Type unknown

AT2020arf (= SAGUARO20f), TNS discovered 2020/01/24.501 by Lundquist
Found in LEDA 50668 at R.A. = 14h11m28s.360, Decl. = +24°02'16".06
Located 0".0 east and 0".0 north of the center of LEDA 50668
Mag 20.8:1/24, Type unknown (zhost=0.054670)

AT2020ang (= MASTER OT J050605.96-471343.0), ATEL 13419 discovered 2020/01/23.176 by MASTER
Found in PGC 130509 at R.A. = 05h06m05s.960, Decl. = -47°13'43".00
Located 17".5 west and 1".1 north of the center of PGC 130509 (Discovery image)
Mag 17.5:1/23, Type unknown (zhost=0.046579) (References: TNS)

2020alh (= ATLAS20caf), TNS discovered 2020/01/19.591 by ATLAS
Found in NGC 5419 at R.A. = 14h03m38s.763, Decl. = -33°58'37".39
Located 0".4 east and 4".3 north of the center of NGC 5419
Mag 15.3:1/19, Type Ia (z=0.016) (zhost=0.013763) (References: AstroNote 2020-21, AstroNet 2020-19; SN 2018zz)

2020ais (= ASASSN-20as), ATEL 13413 discovered 2020/01/19.610 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in IC 727 at R.A. = 11h44m28s.621, Decl. = +10°47'01".31
Located 0".3 east and 0".4 south of the center of IC 727 (Discovery image) (Joseph Brimacombe image)
Mag 18.0:1/19, Type Ia-91bg (z=0.02) (zhost=0.019707) (References: TNS)

2020agu (= ASASSN-20ar), ATEL 13503 discovered 2020/01/19.410 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in PGC 157191 at R.A. = 11h58m31s.598, Decl. = -20°41'53".74
Located 0".0 east and 0".0 north of the center of PGC 157191 (Discovery image)
Mag 17.3:1/19, Type II (z=0.025) (References: TNS, AstroNet 2020-20)

2020afp (= ASASSN-20aq) (= Gaia20alv), ATEL 13413 discovered 2020/01/18.660 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in IC 3900 at R.A. = 12h55m41s.263, Decl. = +27°15'01".97
Located 0".5 west and 0".8 south of the center of IC 3900 (Discovery image)
Mag 17.0:1/26 (16.7:1/18), Type Ia (zhost=0.023733) (References: TNS, Gaia observations)

AT2016blu (= Gaia16ada) (= ZTF17aaapufz) (= XM13MZ), (= PSN J12355230+2755559) (= TCP J12355227+2755555) (= TCP J12355223+2755557) (= TCP J12355223+2755559), CBET 2976 discovered 2012/01/11.250 by Lick Observatory Supernova Search
Found in NGC 4559 at R.A. = 12h35m52s.30, Decl. = +27°55'55".9
Located 74" west and 100" south of the center of NGC 4559 (Discovery image)
Mag 16.9:2/18/2020 (16.7:1/11/2012), Type LBV (z=0.003) (References: ATEL 3865, ATEL 6303, VSnet observations, TNS, OSC; SN 1941A)
LBV in NGC 4559 images sub-page