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All active supernova over mag 17.0
NameMagTypeHost
2021jad12.9IaNGC 1964
2021hiz13.9IaIC 3322A
2021hpr14.4IaNGC 3147
ASASSN-21ek14.6IaCGCG 178-036
2021J14.8*IaNGC 4414
AT2021kzs15.0unknone
AT2021lfb15.4unknone
AT2021hcz15.4*unkNGC 1400
2021gmg15.4Ia-91Tanonymous
2021fxy15.4IaNGC 5018
AT2021lba15.5unknone
2021jtt15.6SNNGC 2955
2021jvs15.7IaUGC 9625
2021gmj15.7IINGC 3310
AT2021jrt15.8unknone
AT2021jkh15.8unknone
AT2021jba15.8unknone
2021K15.8*IaMCG +6-30-84
AT2021kix15.9unknone
ASASSN-21dg15.9*IInIC 863
AT2021ifk16.0unknone
AT2021fbz16.1*EGNM31
2021gbs16.1*IaESO 528-G18
AT2021igi16.2unknone
AT2021fwv16.2*unknone
2021hmc16.2IaSBS 0951+534
2021dov16.2IaCGCG 005-038
AT2021kpg16.3unkMCG -7-2-12
AT2021kgj16.4IIn/LBVNGC 4188
AT2021jlq16.4unknone
AT2021ifz16.4unknone
AT2021hpf16.4*unknone
2021ixi16.4Ia-91Tanonymous
AT2021koe16.5unknone
AT2021jsr16.5unknone
2021cah16.5*IIUGC 2270
2021biz16.5*IaNGC 4227
AT2021kvz16.6unknone
AT2021kox16.6unknone
AT2021kdn16.6unknone
AT2021hvb16.6*unknone
AT2021cdo16.6*unkanonymous
2021dbg16.6*IIMCG -1-24-14
AT2021kzb16.7unknone
AT2021kni16.7unkNGC 7767
2021gmh16.7Iaanonymous
2021cgl16.7*IaLEDA 2375699
ASASSN-21gp16.8Iaanonymous
2021hep16.8Iaanonymous
2021hem16.8Ianone
2021gtp16.8IaUGC 4611
2021jag16.9IaNGC 4108
2021dpu16.9*IaUGC 2261
2020qmp16.9*IIUGC 7125

* - 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.   24 years and counting.

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

News: 2021jad just popped up in NGC 1964.   2021fxy is bright in NGC 5018.   2021hiz is in edge on IC 3322A.   2021hpr popped up in NGC 3174 just as 2021do was fading.   2021hcz was just discovered in NGC 1400.   AT2021biy in NGC 4631 is a faint (Mag 18) LRN.   For the year 2021, 7348 supernovae (738 CBAT, 6610 unconfirmed, and 0 other sources) have been reported. (19242 last year).   The brightest SN of the year 2021 are 2021J (Mag 12.5)

TNS has moved to a new URL: https://www.wis-tns.org/.   I've lost my Thistlethwaites mirror and RochesterAstronomy.com mirror so please bookmark my Purdue mirror as a backup to the Main page.   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.  

AT2021lbt (= ASASSN-21hb), TNS discovered 2021/05/04.150 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 17h33m16s.442, Decl. = -65°28'07".93
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 17.3:5/4, Type unknown (zhost=0.028013)

AT2021kzb, TNS discovered 2021/05/02.998 by Paulo Cacella
Found in an anonymous galaxy at R.A. = 13h12m51s.920, Decl. = -47°28'09".26
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 16.7:5/2, Type unknown

AT2021kwc (= ZTF21aaydxoo), TNS discovered 2021/05/02.274 by Zwicky Transient Facility (ZTF)
Found in NGC 5231 at R.A. = 13h35m47s.921, Decl. = +02°59'59".41
Located 0".0 east and 0".0 north of the center of NGC 5231
Mag 18.4:5/2, Type unknown (zhost=0.021759) (References: ZTF observations)

AT2021kwb (= ASASSN-21gy), TNS discovered 2021/05/02.340 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 17h46m18s.506, Decl. = -22°09'46".98
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 15.1:5/2, Type Nova?

AT2021kvp (= ASASSN-21gx) (= Gaia21cej), TNS discovered 2021/05/01.790 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 06h39m52s.747, Decl. = -54°39'04".67
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 17.0:5/1, Type unknown (zhost=0.035111) (References: Gaia observations)

AT2021kni (= PSN J23505558+2705349), TNS discovered 2021/04/26.766 by Koichi Itagaki
Found in NGC 7767 at R.A. = 23h50m55s.580, Decl. = +27°05'34".90
Located 11".0 west and 21".0 north of the center of NGC 7767 (Discovery image) (Odd Trondal image)
Mag 16.7:4/26, Type unknown (References: CBAT TOCP)

2021kku (= ASASSN-21gp) (= Gaia21can), TNS discovered 2021/04/23.417 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 22h59m19s.433, Decl. = +14°29'23".75
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 16.8:4/23, Type Ia (zhost=0.032811) (References: Gaia observations)

AT2021kgj (= ATLAS21nak), AstroNote 2021-131 discovered 2021/04/18.427 by ATLAS
Found in NGC 4188 at R.A. = 12h14m07s.560, Decl. = -12°35'16".89
Located 2".9 east and 7".3 south of the center of NGC 4188 (Jean-Claude Merlin image) (Jean-Claude Merlin image)
Mag 16.4:4/23, Type IIn/LBV (References: AstroNote 2021-137, TNS)

AT2021kbp (= ASASSN-21gf), TNS discovered 2021/04/17.120 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 368-G5 at R.A. = 07h33m24s.175, Decl. = -35°05'11".29
Located 0".0 east and 0".0 north of the center of ESO 368-G5
Mag 17.5:4/17, Type unknown (zhost=0.028179)

2021jvn (= ASASSN-21gb) (= Gaia21bxj), TNS discovered 2021/04/09.620 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in LEDA 1142982 at R.A. = 21h38m38s.122, Decl. = -00°27'03".17
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 17.1:4/16, Type IIn (z=0.064) (zhost=0.063997) (References: Gaia observations)

2021jtt (= ZTF21aavoqpl), TNS discovered 2021/04/15.199 by Zwicky Transient Facility (ZTF)
Found in NGC 2955 at R.A. = 09h41m16s.452, Decl. = +35°53'02".53
Located 0".0 east and 0".0 north of the center of NGC 2955 (Manfred Mrotzek image) (Odd Trondal image) (Enrico Prosperi image)
Mag 15.6:4/23, Type SN (zhost=0.023393) (References: ZTF observations; SN 2015A)

AT2021jtr (= ASASSN-21fy), TNS discovered 2021/04/13.390 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 22h20m27s.010, Decl. = -62°38'34".55
Located 0".0 east and 0".0 north of the center of the host galaxy (Joseph Brimacombe image)
Mag 17.1:4/15, Type unknown

AT2021jth, TNS discovered 2021/04/08.986 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in NGC 1682 at R.A. = 04h52m18s.900, Decl. = -03°06'24".80
Located 0".0 east and 0".0 north of the center of NGC 1682
Mag 18.0:4/8, Type unknown (zhost=0.014460)

2021jad (= ATLAS21lyp), TNS discovered 2021/04/11.234 by ATLAS
Found in NGC 1964 at R.A. = 05h33m22s.177, Decl. = -21°57'06".55
Located 5".8 east and 21".8 south of the center of NGC 1964 (Grzegorz Duszanowicz image)
Mag 12.9:4/24 (12.9:4/22), Type Ia (z=0.0055) (zhost=0.005534) (References: AstroNote 2021-118, AstroNote 2021-117)
2021jad images sub-page

AT2021izl (= ASASSN-21fe), TNS discovered 2021/04/09.980 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 07h10m06s.530, Decl. = -38°42'22".10
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 17.3:4/9, Type unknown

2021iff (= ASASSN-21ex), TNS discovered 2021/04/04.840 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in PGC 299844 at R.A. = 08h40m57s.912, Decl. = -67°01'44".51
Located 0".0 east and 0".0 north of the center of PGC 299844 (Joseph Brimacombe image)
Mag 17.3:4/4, Type Ia (z=0.03) (References: AstroNote 2021-115)