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All active supernova over mag 17.0
2021hiz13.3IaIC 3322A
2021fxy14.2IaNGC 5018
2021hpr14.4IaNGC 3147
2021J14.8IaNGC 4414
AT2021hcz15.4unkNGC 1400
2021jad15.4IaNGC 1964
2021dnn15.5*IaNGC 304
2021gmj15.7IINGC 3310
2021K15.8IaMCG +6-30-84
ASASSN-21dg15.9IInIC 863
ASASSN-21ek16.0IaCGCG 178-036
2021gtp16.0IaUGC 4611
AT2021gbs16.1unkESO 528-G18
2021hmc16.2IaSBS 0951+534
2021dov16.2IaCGCG 005-038
2021fpm16.5IaMCG -2-51-8
2021cah16.5IIUGC 2270
2021biz16.5IaNGC 4227
ASASSN-21bv16.6*unkESO 116-G5
2021bbz16.6*IaARK 321
2021gdz16.7IIKUG 1150+203
2021cgl16.7*IaLEDA 2375699
AT2016blu16.8*LBVNGC 4559
2021bkw16.8*IaLEDA 1634284
2021dpu16.9IaUGC 2261
2020qmp16.9IIUGC 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, 6319 supernovae (574 CBAT, 5745 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.  

AT2021jby (= DLT21l), TNS discovered 2021/04/12.320 by DLT40
Found in ESO 269-G78 at R.A. = 13h16m54s.180, Decl. = -45°51'46".00
Located 0".0 east and 0".0 north of the center of ESO 269-G78
Mag 19.0:4/12, Type CV (References: AstroNote 2021-118)

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
Mag 15.4:4/11, Type Ia (z=0.0055) (zhost=0.005534) (References: AstroNote 2021-118, AstroNote 2021-117)

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)

2021hpr (= ATLAS21jme) (= ZTF21aarqkes), TNS discovered 2021/04/02.449 by Koichi Itagaki
Found in NGC 3147 at R.A. = 10h16m38s.641, Decl. = +73°24'02".02
Located 64".2 west and 1".0 south of the center of NGC 3147 (Discovery image)
Mag 14.4:4/11, Type Ia (zhost=0.009346) (References: AstroNote 2021-107, ATEL 14541, ZTF observations; SN 2021do, 2008fv, 2006gi, 1997bq, 1972H)
2021hpr images sub-page

AT2021hku (= ASASSN-21en), TNS discovered 2021/03/31.350 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in ESO 186-IG59 at R.A. = 20h32m01s.913, Decl. = -53°44'58".27
Located 0".0 east and 0".0 north of the center of ESO 186-IG59 (Discovery image)
Mag 16.7:3/31, Type Ic-BL (z=0.011) (zhost=0.010908) (References: AstroNote 2021-108)

2021hiz (= ZTF21aaqytjr), TNS discovered 2021/03/30.359 by Zwicky Transient Facility (ZTF)
Found in IC 3322A at R.A. = 12h25m41s.675, Decl. = +07°13'42".26
Located 13".2 west and 42".3 north of the center of IC 3322A (Robin Leadbeater image)
Mag 13.3:4/11, Type Ia (zhost=0.003319) (References: ATEL 14500, ZTF observations)
2021hiz images sub-page

2021hfu (= ASASSN-21ek), TNS discovered 2021/03/29.168 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in CGCG 178-036 at R.A. = 08h13m18s.449, Decl. = +34°55'56".82
Located 0".0 east and 0".0 north of the center of CGCG 178-036
Mag 16.0:3/29, Type Ia (z=0.02) (zhost=0.017542)

2021gtp (= ZTF21aapyiku) (= ATLAS21hry), TNS discovered 2021/03/19.215 by Zwicky Transient Facility (ZTF)
Found in UGC 4611 at R.A. = 08h48m50s.262, Decl. = +29°52'13".80
Located 7".9 west and 1".0 north of the center of UGC 4611 (Felipe Peņa image) (Odd Trondal image)
Mag 16.0:4/10 (15.6:4/6), Type Ia (z=0.0202) (zhost=0.019685) (References: ATEL 14479, ZTF observations)

2021gmj (= ZTF21aaqgmjt) (= ATLAS21izq), TNS discovered 2021/03/20.320 by DLT40
Found in NGC 3310 at R.A. = 10h38m47s.275, Decl. = +53°30'30".36
Located 12".6 east and 18".2 north of the center of NGC 3310 (Gianluca Masi image)
Mag 15.7:4/10 (15.1:3/20), Type II (z=0.0033) (zhost=0.003312) (References: AstroNote 2021-93, AstroNote 2021-91, ZTF observations; SN 1974C)
2021gmj images sub-page

AT2021gfp, TNS discovered 2021/03/18.492 by Stu Parker (BOSS)
Found in ESO 42-G14 at R.A. = 15h54m24s.320, Decl. = -74°45'01".80
Located 5".6 east and 7".7 south of the center of ESO 42-G14 (Discovery image) (Stu Parker image)
Mag 17.3:3/18, Type unknown

AT2021gbs (= MASTER OT J203331.31-243730.1), ATEL 14473 discovered 2021/03/13.397 by MASTER
Found in ESO 528-G18 at R.A. = 20h33m31s.310, Decl. = -24°37'30".10
Located 0".0 east and 0".0 north of the center of ESO 528-G18 (Discovery image)
Mag 16.1:3/13, Type unknown (zhost=0.024824) (References: TNS; SN 2003ib)

AT2021gbk (= ASASSN-21dt), TNS discovered 2021/03/18.020 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in an anonymous galaxy at R.A. = 05h37m01s.039, Decl. = -22°16'03".86
Located 0".0 east and 0".0 north of the center of the host galaxy
Mag 17.2:3/18, Type unknown (zhost=0.039961)

2021fxy (= PS21cam) (= ATLAS21iic) (= ZTF21aaprfqv), TNS discovered 2021/03/17.725 by Koichi Itagaki
Found in NGC 5018 at R.A. = 13h13m01s.557, Decl. = -19°30'45".06 (not NGC 5022)
Located 7".5 east and 20".4 north of the center of NGC 5018 (Discovery image)
Mag 14.2:4/9 (13.9:3/31), Type Ia (zhost=0.009393) (References: ZTF observations; SN 2002dj)
2021fxy images sub-page