Bright Supernovae - 2025

This data comes from TNS and ATEL circulars.   An archive of the 2025 updates to this page is available.

This is a partial list of the SN discovered in 2025. Since 2025 is still ongoing, please look at the main page for the latest data.   In previous years I tried to keep the yearly archive alphabetically sorted by TNS supernova name.   Since that is no longer applicable, I am sorting this archive by "first observed" date, which I have listed as the discovery date.   If you are looking for a specific object then you can use the format "<a href=”index.html#2025xx>2025xx</a>" to find a specific object. Note that Extra galactic Novae have been moved to a special Extra galactic novae page.   Mistakes (Galactic variables, asteroids, unconfirmed, etc) are in the boneyard.   I also maintain an archive of the updates.

  • 2025X was removed by TNS and added the the entry for 2022mop, which is at the same coordinates, It has now been classifed as a type IIn.  
2025gmc (= ZTF25aalthwc) (= ATLAS25dmk) (= BGEM J073155.76+181948.2), TNS discovered 2025/04/01.613 by JIST
Found in NGC 2407 at R.A. = 07h31m55s.762, Decl. = +18°19'48".25
Located 12".9 west and 10".6 south of the center of NGC 2407 (Yuan-Sheng Tsai image Discovery) (Jacques Ruel image facebook) (Marie Newnham image) (Yuan-Sheng Tsai image)
Mag 17.3:4/30 (15.8:4/17), Type Ia (z=0.023) (zhost=0.028029) (References: ZTF observations)

2025fel (= ZTF25aajqkdo), TNS discovered 2025/03/21.277 by Zwicky Transient Facility (ZTF)
Found in CGCG 285-015 at R.A. = 07h08m39s.416, Decl. = +61°18'18".34
Located 0".5 east and 0".2 south of the center of CGCG 285-015 (Markus Kempf image)
Mag 17.2:5/9 (15.6:5/15), Type Ia (zhost=0.025386) (References: ZTF observations)

2025efc (= ATLAS25cqk) (= ZTF25aaiwalj) (= PS25amk) (= GOTO24juu), TNS discovered 2025/03/12.153 by ATLAS
Found in ESO 565-G19 at R.A. = 09h34m43s.542, Decl. = -21°55'51".82
Located 0".4 west and 12".0 south of the center ESO 565-G19 (Discovery image) (Marie Newnham image) (Fabio Feijo image) (Achim Sucker image)
Mag 16.4:4/30 (15.0:3/27), Type Ia (zhost=0.016285) (References: AstroNote 2025-87, ZTF observations)

2025efa (= ATLAS25cqi) (= GOTO25bap) (= PS25avs), TNS discovered 2025/03/12.204 by ATLAS
Found in ESO 443-G16 at R.A. = 12h57m28s.310, Decl. = -28°12'06".90
Located 6".2 west and 10".7 north of the center ESO 443-G16 (Kym Thalassoudis image) (Kym Thalassoudis image) (Marie Newnham image) (Fabio Feijo image)
Mag 15.6:3/24, Type Ia (z=0.016221) (References: AstroNote 2025-85)

2025coe (= ATLAS25caa) (= ZTF25aahsvoc), TNS discovered 2025/02/24.634 by Koichi Itagaki
Found in NGC 3277 at R.A. = 10h33m07s.950, Decl. = +28°26'13".10
Located 164".8 east and 269".3 south of the center of NGC 3277 (Discovery image)
Mag 18.8:3/21 (14.6:3/7), Type Ib-Ca-rich (z=0.004720) (References: ATEL 17138, ZTF observations)
2025coe images sub-page

2025aue (= PSP25D) (= ZTF25aaduxhj), TNS discovered 2025/02/03.651 by ATLAS
Found in UGC 3007 at R.A. = 04h18m30s.394, Decl. = +33°46'15".97
Located 2".1 east and 10".6 south of the center of UGC 3007 (Carlos Segarra image) (Rafael Ferrando image facebook) (Richard Hill image) (Achim Sucker image) (Manfred Mrotzek image) (Enrico Prosperi image facebook) (Enrico Prosperi image facebook)
Mag 16.9:3/27 (15.5:2/14), Type Ia-91T (z=0.019) (zhost=0.018783) (References: ZTF observations)

2025qe (= ZTF25aacerkv), TNS discovered 2025/01/18.262 by ATLAS
Found in IC 529 at R.A. = 09h18m28s.190, Decl. = +73°45'44".89
Located 19".1 west and 11".3 north of the center of IC 529 (Eliot Herman image) (J. D. image facebook) (Odd Trondal image) (Carlos Segarra image) (Andy Cason image) (Amar Sharma image facebook) (Klemens Waldhör image) (Giancarlo Cortini image) (Rafael Ferrando image facebook color) (Gianluca Masi image) (Marie Newnham image) (Giancarlo Cortini image) (Nigel Barns image) (Manfred Mrotzek image)
Mag 18.2:4/5 (15.7:1/28), Type Ia-02cx (z=0.0075) (zhost=0.007532) (References: ZTF observations)

AT2025pk (= PSST-XL2025A), TNS discovered 2025/01/17.426 by Yiming Mao
Found in NGC 615 at R.A. = 01h35m07s.600, Decl. = -07°19'19".10
Located 28".3 east and 65".9 north of the center of NGC 615 (Discovery image)
Mag 17.0:1/17, Type unknown (zhost=0.006131)

2025oq (= GOTO25io) (= ZTF25aaccmjq) (= ATLAS25als) (= BGEM J090438.41+182800.2), TNS discovered 2025/01/17.024 by ATLAS
Found in NGC 2744 at R.A. = 09h04m38s.432, Decl. = +18°28'00".03
Located 10".6 west and 10".6 north of the center of NGC 2744 (Fabio Feijo image)
Mag 18.1:4/5 (14.7:1/26), Type Ic-BL (z=0.011330) (References: AstroNote 2025-46, AstroNote 2025-37, TNS, ZTF observations)
2025oq images sub-page

2025mb (= ATLAS25akl), TNS discovered 2025/01/15.042 by ATLAS
Found in NGC 150 at R.A. = 00h34m16s.885, Decl. = -27°48'05".26
Located 2".4 west and 16".7 north of the center of NGC 150 (Eliot Herman image) (Eliot Herman image) (Kym Thalassoudis image) (Marie Newnham image)
Mag 14.4:1/31, Type Ia (z=0.005) (zhost=0.005294) (References: AstroNote 2025-23; SN 1990K)

2025gj (= DLT25a) (= ZTF25aabmhly) (= ATLAS25aim) (= GOTO25gp), TNS discovered 2025/01/08.256 by DLT40
Found in NGC 2986 at R.A. = 09h44m20s.255, Decl. = -21°16'22".62
Located 59".2 east and 18".5 north of the center of NGC 2986 (Eliot Herman image)
Mag 18.0:4/30 (13.7:1/25), Type Ia (z=0.0077) (zhost=0.007679) (References: ZTF observations; SN 1999gh)
2025gj images sub-page

2025dr (= ATLAS25agc) (= ZTF25aabnwba), TNS discovered 2025/01/06.267 by ATLAS
Found in UGC 670 at R.A. = 01h06m46s.083, Decl. = +75°36'12".11
Located 15".7 west and 10".8 north of the center of UGC 670 (Giancarlo Cortini image) (Grup Supernoves l'Astroṇmica de Sabadell image) (Wolfgang Kreiss image) (Marie Newnham image) (Wolfgang Kreiss image) (Manfred Mrotzek image)
Mag 17.0:2/18 (16.1:1/20), Type Ia (zhost=0.015948) (References: ZTF observations)

2025X (= PSN J23305120-0256341) (= Gaia25aaf), TNS discovered 2024/12/31.008 by Koichi Itagaki
Found in IC 1496 at R.A. = 23h30m51s.217, Decl. = -02°56'33".90
Located 34".5 west and 30".7 south of the center of IC 1496 (Discovery image) (Toshihide Noguchi image) (Odd Trondal image) (Marie Newnham image)
Mag 16.5:1/14, Type IIn (zhost=0.017219) (Note: TNS entry merged with 2022mop, which was initially a type Ia) (References: CBAT TOCP, Gaia observations; SN 2022mop; 2005co)

Look at the updates page for a list of the most recent changes and additions to these pages.

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Please send feedback to David Bishop dbishopx@gmail.com