Extragalactic Novae

Extragalactic Novae - 2025

Much of this data comes from IAU Circulars and occasionally more data will be provided on IAU's Astronomical Headlines page. An archive of the 2025 updates to this page is available.

Announced Extragalactic Novae will have a link on the main page that points to this one. Please note that I do not keep track of galactic novae.

For current Novae, please see the main Extragalactic Novae page

AT2025cfa (= GOTO25aoe) (= BGEM J100313.02-260942.5) discovered 2025/02/20.970 at R.A. = 10h03m13s.023, Decl. = -26°09'42".53 Mag 18.1:2/20, Type EGN (z=0.001344) (host NGC 3109) (References: TNS)

AT2025axv (= TCP J00441451+4122032), TNS discovered 2025/02/05.471 by Koichi Itagaki
Found in M31 at R.A. = 00h44m14s.510, Decl. = +41°22'03".20
Located 1015".0 east and 355".0 north of the center of M31 (Discovery image)
Mag 17.1:2/5, Type EGN (References: CBAT TOCP)

AT2025atx (= PNV J00430161+4119362) (= ATLAS25bhl), ATEL 17014 discovered 2025/02/03.102 by Kamil Hornoch et al.
Found in M31 at R.A. = 00h43m01s.619, Decl. = +41°19'36".04
Located 194".8 east and 207".7 north of the center of M31 (Discovery image)
Mag 18.0:2/3, Type unknown (References: TNS, CBAT TOCP)

Nova M81 2025-02a? (= PNV J09550507+6909090), ATEL 17011 discovered 2025/02/01.765 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m05s.070, Decl. = +69°09'09".00
Located 150".3 west and 313".9 north of the center of M81 (Discovery image)
Mag 19.8:2/1, Type unknown (References: CBAT TOCP)

Nova M81 2025-01c? (= PNV J09545432+6908301), CBAT TOCP discovered 2025/01/07.949 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h54m54s.320, Decl. = +69°08'30".10
Located 207".9 west and 275".0 north of the center of M81 (Discovery image)
Mag 21.3:1/7, Type unknown (References: ATEL 17002)

Nova M81 2025-01b? (= PNV J09551875+6900102), CBAT TOCP discovered 2025/01/26.749 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m18s.750, Decl. = +69°00'10".20
Located 77".4 west and 224".9 south of the center of M81
Mag 20.1:1/26, Type unknown (References: ATEL 16998)

AT2025akl (= Nova M81 2025-01a?) (= GOTO25wx) (= PNV J09552092+6904317), ATEL 16996 discovered 2025/01/26.749 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m20s.862, Decl. = +69°04'31".18
Located 65".7 west and 36".6 north of the center of M81 (Discovery image)
Mag 18.6:1/26, Type unknown (References: TNS, CBAT TOCP)

AT2025ki (= PSP25A) (= PNV J00424538+4116352), TNS discovered 2025/01/11.513 by Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h42m45s.380, Decl. = +41°16'35".20
Located 11".9 east and 26".7 north of the center of M31 (Discovery image)
Mag 17.3:1/11, Type unknown (zhost=-0.001000) (References: CBAT TOCP)

AT2025bm (= ZTF25aaakxjj), TNS discovered 2025/01/04.165 by Zwicky Transient Facility (ZTF)
Found in M31 at R.A. = 00h42m49s.761, Decl. = +41°16'47".23
Located 61".3 east and 38".7 north of the center of M31 (Hornoch discovery image)
Mag 18.1:1/4, Type unknown (zhost=0.001341) (References: ATEL 16966, ZTF observations)

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