Extragalactic Novae - 2023

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 2023 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

AT2023nou (= GEOTS-Balaji-2023-008) (= PNV J01335643+3043357), TNS discovered 2023/07/20.435 by GEOTS
Found in M33 at R.A. = 01h33m56s.430, Decl. = +30°43'35".70
Located 71".5 east and 238".9 north of the center of M33 (Discovery image)
Mag 16.7:7/20, Type unknown (References: CBAT TOCP)

AT2023mxi (= PSP23H) (= MASTER OT J004341.86+405222.7) (= PNV J00434177+4052237) (= ZTF23aarlxdf), TNS discovered 2023/07/12.859 by Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h43m41s.770, Decl. = +40°52'23".70
Located 647".7 east and 1424".8 south of the center of M31 (Discovery image)
Mag 20.2:7/28 (16.1:7/12), Type EGN (zhost=-0.001000) (References: CBAT TOCP, ZTF observations)

2023lyd (= NM312306c) (= MASTER OT J004154.18+411015.9) ATEL 16095 discovered 2023/06/25.983 by MASTER
Found in M31 at R.A. = 00h41m54s.200, Decl. = +41°10'16".60
Located 565".0 west and 351".9 south of the center of M31 (Discovery image) (A. Valcheva image)
Mag 18.2:7/11 (17.6:6/25), Type EGN (z=-0.00017) (References: ATEL 16127, TNS)

AT2023kdb (= Barlad V2) (= PNV J00430970+4129461), TNS discovered 2023/06/09.034 by Dumitru Ciprian
Found in M31 at R.A. = 00h43m09s.700, Decl. = +41°29'46".10
Located 285".6 east and 817".6 north of the center of M31
Mag 16.2:6/9, Type unknown (References: CBAT TOCP)

Nova M31 2023-06a? (= PNV J00424628+4116210), ATEL 16074 discovered 2023/06/02.004 by Kamil Hornoch et al.
Found in M31 at R.A. = 00h42m46s.280, Decl. = +41°16'21".00
Located 22".1 east and 12".5 north of the center of M31 (Discovery image)
Mag 16.5:6/2, Type unknown (References: CBAT TOCP)

AT2023ksu (= Nova M31 2023-05b?) (= PNV J00421981+4107048) (= ZTF23aaluzap), CBAT TOCP discovered 2023/05/24.476 by Kamil Hornoch et al.
Found in M31 at R.A. = 00h42m19s.791, Decl. = +41°07'04".45
Located 276".7 west and 543".7 south of the center of M31 (Discovery image)
Mag 18.1:5/28 (17.6:5/24), Type unknown (References: ATEL 16058, TNS, ZTF observations)

AT2023hrm (= XM98MZ) (= PNV J00424488+4115033), TNS discovered 2023/05/07.872 by Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h42m44s.880, Decl. = +41°15'03".30
Located 6".4 east and 65".7 south of the center of M31 (XOSS discovery image) (Hornoch discovery image)
Mag 16.5:5/8, Type unknown (zhost=-0.001000) (References: ATEL 16032, CBAT TOCP)

AT2023gvz (= MASTER OT J004240.02+410334.1), TNS discovered 2023/04/26.022 by MASTER
Found in M31 at R.A. = 00h42m40s.020, Decl. = +41°03'34".10
Located 0".0 east and 0".0 north of the center of M31
Mag 16.9:4/26, Type unknown

Nova M31 2023-03a? (= PNV J00423893+4126379), ATEL 15965 discovered 2023/03/27.793 by Kamil Hornoch et al.
Found in M31 at R.A. = 00h42m38s.930, Decl. = +41°26'37".90
Located 60".7 west and 629".4 north of the center of M31 (Discovery image)
Mag 16.6:3/27, Type unknown (References: CBAT TOCP)

AT2023cqt (= ATLAS23ddk), TNS discovered 2023/03/01.002 by ATLAS
Found in M64 at R.A. = 12h56m47s.063, Decl. = +21°39'45".84
Located 47".7 east and 72".9 south of the center of M64 (Giancarlo Cortini image)
Mag 18.8:3/1, Type EGN (z=0.001) (zhost=0.001364) (References: AstroNote 2023-53)

AT2023cnj (= XM97MZ) (= PNV J00423575+4116167), TNS discovered 2023/02/24.565 by Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h42m35s.750, Decl. = +41°16'16".70
Located 97".0 west and 8".0 north of the center of M31 (Discovery image)
Mag 18.7:2/24, Type unknown (zhost=-0.001000) (References: CBAT TOCP)

AT2023brc (= XM96MZ) (= PNV J00422147+4112452) (= Gaia23azl), TNS discovered 2023/02/13.558 by Xingming Observatory Sky Survey (XOSS); K. Hornoch
Found in M31 at R.A. = 00h42m21s.468, Decl. = +41°12'45".01
Located 257".8 west and 203".6 south of the center of M31 (XOSS discovery image) (Hornoch discovery image) (George Carey image)
Mag 18.2:3/5 (18.0:2/13), Type unknown (zhost=-0.001000) (References: CBAT TOCP, ATEL 15901, ATEL 15926, Gaia observations)

AT2023bnl (= Nova M81 2023-02a?) (= OMB-PNV20) (= PNV J09560893+6902443) TNS discovered 2023/02/10.934 by Kamil Hornoch et al.; ISSP
Found in M81 at R.A. = 09h56m08s.930, Decl. = +69°02'44".30
Located 192".0 east and 71".0 south of the center of M81 (Sofia U image)
Mag 17.3:2/17, Type unknown (References: ATEL 15912, ATEL 15898, ATEL 15896, CBAT TOCP)

AT2023bne (= OMB-PNV19) (= PNV J01345297+3047145), TNS discovered 2023/02/10.791 by F.Castellani, R.Belligoli, V.Andreoli
Found in M33 at R.A. = 01h34m52s.970, Decl. = +30°47'14".50
Located 800".5 east and 457".7 north of the center of M33 (Andrea Mantero image) (Las Cumbres image)
Mag 16.8:2/13, Type EGN (References: ATEL 15899, CBAT TOCP)

Nova M31 2023-02a? (= PNV J00423790+4112499), CBAT TOCP discovered 2023/02/07.754 by F.Castellani, R.Belligoli, V.Andreoli
Found in M31 at R.A. = 00h42m37s.900, Decl. = +41°12'49".90
Located 69".0 west and 196".0 south of the center of M31
Mag 18.0:2/7, Type unknown

AT2023ps (= OMB-PNV18) (= PNV J00424623+4117357), TNS discovered 2023/01/14.767 by Raffaele Belligoli (ISSP)
Found in M31 at R.A. = 00h42m46s.230, Decl. = +41°17'35".70
Located 21".5 east and 87".2 north of the center of M31
Mag 19.3:1/14, Type unknown (References: CBAT TOCP)

AT2023ax (= XM94MZ) (= PNV J00430924+4117022) (= ZTF23aaaairl), TNS discovered 2023/01/06.516 by Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h43m09s.223, Decl. = +41°17'02".21
Located 280".7 east and 53".7 north of the center of M31 (Discovery image)
Mag 19.6:2/9 (17.1:1/12), Type FeII (zhost=-0.001000) (References: ATEL 15850, ATEL 15867, ATEL 15926, ZTF observations, CBAT TOCP)

AT2023U (= XM93MZ) (= PNV J00423797+4117130) (= M31N 2023-01a) (= Gaia23afw), TNS discovered 2023/01/03.576 by Xingming Observatory Sky Survey (XOSS)
Found in M31 at R.A. = 00h42m37s.944, Decl. = +41°17'13".06
Located 71".9 west and 64".9 north of the center of M31 (XOSS discovery image) (Hornoch discovery image) (Las Cumbres image)
Mag 17.9:1/11 (17.6:1/3), Type unknown (zhost=-0.001000) (References: ATEL 15842, ATEL 15845, Gaia observations)

Latest Supernovae Latest Extragalactic Novae
Supernovae from 2023 Unconfirmed objects from 2023
Supernovae from 2022 Extragalactic Novae from 2022 Unconfirmed objects from 2022
Back to Archives.

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

Back to Bright Supernovae.
Back to Extragalactic novae.
Back to Supernova Archives.

Please send feedback to David Bishop dbishopx@gmail.com