Much of this data comes from CBET Circulars and occasionally more data will be provided on IAU's Astronomical Headlines page. CBET now has an M31 novae page, M33 novae page, and an M81 novae 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 megellanic 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 Please note that I do not keep track of galactic novae.  

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AT2019rsi, TNS discovered 2019/10/02.801 by George Carey
Found in M31 at R.A. = 00h42m23s.520, Decl. = +41°11'52".80
Located 0".0 east and 0".0 north of the center of M31 (Discovery image) (George Cary image) (Robert Spellman image)
Mag 18.5:10/2, Type unknown

AT2019puh (= ZTF19abxnerq), TNS discovered 2019/09/06.467 by Zwicky Transient Facility (ZTF)
Found in M31 at R.A. = 00h40m40s.022, Decl. = +40°40'12".22
Located 0".0 east and 0".0 north of the center of M31
Mag 19.7:9/6, Type unknown (References: ZTF observations)

Nova M31 2019-09c? (= PNV J00441073+4154220) (= ZTF19abxnerq), CBAT TOCP discovered 2019/09/22.645 by Zhijian Xu and Xing Gao
Found in M31 at R.A. = 00h44m10s.730, Decl. = +41°54'22".00
Located 974".0 east and 2294".0 north of the center of M31 (Discovery image) (K. Itagaki image)
Mag 17.8:9/22, Type unknown (References: ATEL 13153, ANTARES 5277540, ZTF observations; Recurrent nova Nova M31 2017-01e)

AT2019qml (= XM16MZ) (= PNV J01335271+3044359), TNS discovered 2019/09/20.615 by Xingming Observatory Sky Survey (XOSS)
Found in M33 at R.A. = 01h33m52s.710, Decl. = +30°44'35".90
Located 23".4 east and 298".9 north of the center of M33 (Discovery image) (Joseph Brimacombe image) (Robert Spellman prediscovery image)
Mag 19.7:9/29 (18.6:9/20), Type unknown (References: CBAT TOCP)

AT2019qcg (= Nova M31 2019-09b?) (= XM15MZ) (= PNV J00424232+4117458), ATEL 13109 discovered 2019/09/13.782 by Kamil Hornoch and Hana Kucakova; George Carey
Found in M31 at R.A. = 00h42m42s.320, Decl. = +41°17'45".80
Located 22".6 west and 97".3 north of the center of M31 (Discovery image) (George Carey image) (Robert Spellman image) (Robert Spellman image) (Nick James image) (George Cary image)
Mag 16.7:9/14, Type EGN (References: ATEL 13141, CBAT TOCP TNS)

AT2019pih, TNS discovered 2019/08/29.944 by Emmanuel Conseil
Found in M31 at R.A. = 00h44m18s.250, Decl. = +41°32'47".20
Located 0".0 east and 0".0 north of the center of M31 (Discovery image) (George Carey image)
Mag 18.0:8/29, Type FeII (References: ATEL 13078)

Nova M31 2019-09a? (= PNV J00423716+4116454), CBAT TOCP discovered 2019/09/02.540 by Koichi Itagaki; Hana Kucakova and Kamil Hornoch
Found in M31 at R.A. = 00h42m37s.160, Decl. = +41°16'45".40
Located 80".2 west and 36".8 north of the center of M31 (Discovery image) (Hornoch image) (Joseph Brimacombe image)
Mag 16.0:9/2, Type Nova (References: ATEL 13078, ATEL 13071)

AT2019msk (= Nova M31 2019-08a?) (= ATLAS19rmf) (= PNV J00423828+4113423) (= MASTER OT J004238.21+411341.6), CBAT TOCP discovered 2019/08/04.577 by Koichi Itagaki; Hana Kucakova and Kamil Hornoch; ATLAS; MASTER
Found in M31 at R.A. = 00h42m38s.280, Decl. = +41°13'42".30
Located 68".6 west and 146".3 south of the center of M31 (Discovery image) (Hornoch image) (Robert Spellman image)
Mag 16.2:8/5, Type FeII (References: ATEL 12999, TNS, ATEL 12989)

AT2019lvm (= BraTS-BraTS-T1-003) (= TCP J05293666-7009566) (= Gaia19eif), TNS discovered 2019/07/27.349 by BraTS
Found in LMC at R.A. = 05h29m36s.660, Decl. = -70°09'56".37
Located 0".0 east and 0".0 north of the center of LMC
Mag 15.4:9/27 (12.6:7/27), Type unknown (References: ATEL 12963, CBAT TOCP, Gaia observations)

AT2019lcg (= ZTF19abfvpjh), TNS discovered 2019/07/13.475 by Zwicky Transient Facility (ZTF)
Found in M31 at R.A. = 00h41m20s.249, Decl. = +41°49'39".93
Located 943".8 west and 2011".4 north of the center of M31
Mag 20.5:8/8 (16.9:7/13), Type Nova (References: ATEL 12953, ZTF observations)

Nova M31 2019-07c? (= PNV J00430090+4119194), ATEL 12925 discovered 2019/07/11.079 by Kamil Hornoch and H. Kucakova
Found in M31 at R.A. = 00h43m00s.900, Decl. = +41°19'19".40
Located 186".8 east and 190".9 north of the center of M31 (Discovery image)
Mag 17.3:7/11 (15.9:5/8), Type unknown (References: CBAT TOCP)

Nova M31 2019-07b? (= PNV J00432865+4106040), CBAT TOCP discovered 2019/07/02.678 by Koichi Itagaki
Found in M31 at R.A. = 00h43m28s.650, Decl. = +41°06'04".00
Located 501".0 east and 605".0 south of the center of M31
Mag 17.8:7/2, Type unknown

AT2019lcd (= Nova M31 2013-05b?) (= ZTF19abfqlzi) (= PNV J00425563+4114125) (= M31N 1960-12a), ATEL 5091 discovered 2013/05/29.033 by F. Hofmann et al.; K. Hornoch et al.
Found in M31 at R.A. = 00h42m55s.63, Decl. = +41°14'12".5
Located 127".5 east and 116".0 south of the center of M31 (Kamil Hornoch image) (A. Valcheva image)
Mag 19.6:7/10 (16.7:7/8), Type He/N (References: ATEL 5092, 5099, 5123, 5145, 5257, 12915, 12943, TNS, ZTF observations, CBAT TOCP)

AT2019kli (= ASASSN-19qv), TNS discovered 2019/07/04.290 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in SMC at R.A. = 01h04m30s.197, Decl. = -73°46'22".73
Located 3040".5 east and 3399".8 south of the center of SMC (Joseph Brimacombe image)
Mag 14.2:7/4, Type Nova (References: ATEL 12907, 12917, 12938, 12990)

AT2019iby (= ZTF19aawtdov) (= LPV J013232.49+303521.8), TNS discovered 2019/06/20.445 by Zwicky Transient Facility (ZTF)
Found in M33 at R.A. = 01h32m32s.441, Decl. = +30°35'21".48
Located 1012".6 west and 255".3 south of the center of M33
Mag 19.1:6/20, Type unknown (References: ZTF observations)

Nova M31 2019-06b? (= PNV J00424173+4117537) (= PNV J00424176+4117534), ATEL 12895 discovered 2019/06/27.065 by Kamil Hornoch and Peter Kusnirak
Found in M31 at R.A. = 00h42m41s.730, Decl. = +41°17'53".70
Located 29".2 west and 105".2 north of the center of M31 (Discovery image)
Mag 17.3:7/2, Type unknown (References: CBAT TOCP, CBAT TOCP)

archive.gif For Novae which have faded below 18th magnitude, you will have to look in the archives
Current supernovae
Other supernovae from 2019 Other Extragalactic Novae from 2019 Unconfirmed objects from 2019
Other supernovae from 2018 Other Extragalactic Novae from 2018 Unconfirmed objects from 2018
Supernovae from 2017 Extragalactic Novae from 2017 Unconfirmed objects from 2017

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