Much of this data comes from TNS, ATEL circulars and CBAT's Transient Objects Confirmation Page. An archive of the updates to this page is available.
CBET has a naming convention now for novae in M31 (now extended to Novae in M33 and M81). This convention is YYYY-MMa, where YYYY is the year and MM is the 2-digit month of discovery, and 'a' is a lower-case letter (a, b, c, etc.) representing the order of discovery within that month. Novae in the Magellanic clouds are named with the year followed by a number. Also, see W. Pietsch's M31 (apparent) optical nova catalogue, M33 novae catalog, and M81 novae catalog. CBET has an M31 novae page, M33 novae page, and an M81 novae page (last updated in 2011). Please note that I do not keep track of galactic novae.
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Nova M31 2025-04d?
(= PNV J00430092+4119021),
CBAT TOCP
discovered 2025/04/20.107 by
Kamil Hornoch et al.
Found in M31 at R.A. = 00h43m00s.920, Decl. = +41°19'02".10 Located 187".0 east and 173".6 north of the center of M31 (Discovery image) Mag 18.0:4/21, Type unknown (References: ATEL 17158) |
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Nova M31 2025-04c?
(= PNV J00433279+4116281),
CBAT TOCP
discovered 2025/04/16.111 by
Kamil Hornoch et al.
Found in M31 at R.A. = 00h43m32s.790, Decl. = +41°16'28".10 Located 546".4 east and 19".6 north of the center of M31 (Discovery image) Mag 16.6:4/16, Type unknown (References: ATEL 17149) |
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Nova M31 2025-04b?
(= PNV J00424112+4115024),
CBAT TOCP
discovered 2025/04/16.120 by
Kamil Hornoch et al.
Found in M31 at R.A. = 00h42m41s.120, Decl. = +41°15'02".40 Located 36".1 west and 66".1 south of the center of M31 (Discovery image) Mag 17.4:4/16, Type unknown (References: ATEL 17149) |
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Nova M31 2025-04a?
(= PNV J00423788+4107427),
CBAT TOCP
discovered 2025/04/16.120 by
Kamil Hornoch et al.
Found in M31 at R.A. = 00h42m37s.880, Decl. = +41°07'42".70 Located 72".7 west and 505".8 south of the center of M31 (Discovery image) Mag 16.4:4/16, Type unknown (References: ATEL 17149) |
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Nova M81 2025-04a?
(= PNV J09553921+6902382),
ATEL 17131
discovered 2025/04/04.134 by
Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m39s.210, Decl. = +69°02'38".20 Located 32".4 east and 76".9 south of the center of M81 (Discovery image) Mag 19.6:4/4, Type unknown (References: CBAT TOCP) |
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AT2025etj
(= PSP25G) (= PNV J00411965+4138256),
TNS
discovered 2025/03/17.587 by
Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h41m19s.650, Decl. = +41°38'25".60 Located 951".9 west and 1337".1 north of the center of M31 (Discovery image) Mag 17.5:3/17, Type unknown (zhost=-0.001000) (References: CBAT TOCP) |
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AT2025dkp
(= OMB-PNV24) (= PNV J09551261+6902462),
TNS
discovered 2025/03/05.878 by
Flavio Castellani
Found in M81 at R.A. = 09h55m12s.610, Decl. = +69°02'46".20 Located 110".2 west and 68".9 south of the center of M81 (Hornoch discovery image) (Marc Serrau image) Mag 19.2:3/6 (18.8:3/5), Type unknown (References: ATEL 17066, CBAT TOCP) |
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AT2025dih
(= PNV J09554343+6905154),
TNS
discovered 2025/03/04.869 by
Flavio Castellani
Found in M81 at R.A. = 09h55m43s.430, Decl. = +69°05'15".40 Located 55".0 east and 80".3 north of the center of M81 (Hornoch discovery image) Mag 19.2:3/4, Type unknown (References: CBAT TOCP, ATEL 17064) |
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LMC V1341
(= LMCN 1968-12a),
AAVSO 236393
discovered 1968/12/16.000 by
unknown
Found in LMC at R.A. = 05h09m58s.390, Decl. = -71°39'52".70 Located 0".0 east and 0".0 north of the center of LMC Mag 10.0:8/4/2024, Type Nova (Note: Recurrent nova) (References: ATEL 13731, 16752, 16771, 16772) |
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AT2022qpg
(= PNV J00442079+4123111) (= M31N 2005-10a) (= ZTF22aazdzyj),
TNS
discovered 2022/08/04.954 by
Italian Supernovae Search Project
Found in M31 at R.A. = 00h44m20s.790, Decl. = +41°23'11".10 Located 31".5 east and 61".8 north of the center of M31 (UofT image) (Carlos Segarra image) (Rafa Ferrando image) (Claudio Balcon image) (Hornoch images) (Carlos Segarra image) Mag 20.0:8/28 (16.5:8/6/2022), Type EGN (Note: recurrent nova) (ASASSN light curve) (Claudio Balcon Spectrum) (References: ATEL 15545, ATEL 15558, CBAT TOCP, ZTF observations, AAVSO observations; Nova M31N 2005-10a) |
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AT2022zyr
(= XM88MZ) (= PNV J00424719+4116196) (= M31N 2022-11b) (= PNV J00424726+4116335),
TNS
discovered 2022/11/12.526 by
Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h42m47s.190, Decl. = +41°16'19".60 Located 32".3 east and 11".3 north of the center of M31 (Discovery image) (Hornoch Discovery image) (Joel Nicolas image unconfirmed) Mag 18.8:11/26 (16.1:11/12/2022), Type EGN (Note: Recurent Nova) (References: ATEL 15759, ATEL 15760, ATEL 15779, CBAT TOCP CBAT TOCP; Nova M31N 1984-11b, M31N 2012-09a) |
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AT2022fcy
(= PSP22P) (= PNV J00441072+4154224) (= M31N 2022-03d) (= ZTF19acajeed) (= PNV J00441071+4154221),
TNS
discovered 2022/03/05.592 by
Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h44m10s.720, Decl. = +41°54'22".40 Located 974".0 east and 2294".9 north of the center of M31 (Discovery image) (Hornoch image) (XOSS image) Mag 18.4:8/7/2024 (17.7:3/5/2022), Type unknown (Note: Recurrent Nova) (References: ATEL 16759, ATEL 15729, CBAT TOCP, CBAT TOCP; = M31N 2017-01e) |
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Nova M31 2008-12a
(= PTF09hsd) (= AT2023yvj)
(= Nova M31 2011-10e?) (= PSP23R)
(= TCP J00452884+4154095)
(= Nova M31 2012-10a?),
(= PNV J00452885+4154094),
(= Nova M31 2011-10e?)
(= PNV J00452888+4154097) (= PNV J00452883+4154096) (= PNV J00452894+4154098)
ATEL 5607,
discovered 2008/12/26.481 by
Koichi Nishiyama and Fujio Kabashima
Found in M31 at R.A. = 00h45m28s.80, Decl. = +41°54'10".1 Located 1845".9 east and 2280".9 north of the center of NGC 224 (= M31) (Discovery image) Mag 17.2:12/14/2024 (15.91:10/2/2014), Type FeII (Note: Recurrent Nova) (References: See subpage) Nova M31 2008-12a images subpage |
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| For Novae which have faded below 18th magnitude, you will have to look in the archives |
For more information in Extra galactic novae, look at the
Extra Galactic Nova links
on the links page.
Look at the updates page
for a list of the most recent changes and additions to these pages.
Please send feedback to David Bishop dbishopx@gmail.com