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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AT2018eq (= Nova M31 2018-01b?) (= PNV J00431577+4118393), CBAT TOCP discovered 2018/01/12.724 by Raffaele Belligoli
Found in M31 at R.A. = 00h43m15s.770, Decl. = +41°18'39".30
Located 358".0 east and 153".0 north of the center of M31 (Discovery image corrupted?) (Paolo Campaner image) (Robert Spellman image)
Mag 17.8:1/12, Type CV (References: ATEL 11168, TNS)

AT2018gw (= Nova M31 2018-01a?) (= PNV J00444425+4142449) (= ATLAS18eat), CBAT TOCP discovered 2018/01/10.860 by Emmanuel Conseil
Found in M31 at R.A. = 00h44m44s.250, Decl. = +41°42'44".90
Located 1277".0 east and 1546".0 north of the center of M31 (Discovery image) (Emmanuel Conseil image) (Emmanuel Conseil image)
Mag 18.4:1/10, Type FeII (References: ATEL 11203, TNS)

Nova M31 2008-12a (= PTF09hsd) (= Nova M31 2011-10e?) (= TCP J00452884+4154095) (= Nova M31 2012-10a?), (= PNV J00452885+4154094), (= Nova M31 2011-10e?) (= PNV J00452888+4154097) 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 21.4:1/5/2018 (15.91:10/2/2014), Type FeII (recurrent nova) (References: ATEL 3725, 3727, 3728, 4503, 5607, 5611, 5627, 5633, 6527, 6532, 6535, 6537, 6540, 6543, 6546, 6558, 6565, 6604, 7964, 7965, 7967, 7968, 7969, 7974, 7976, 7979, 7980, 7984, 8029, 8033, 8038, 8062, 9415, 9848, 9852, 9853, 9857, 9861, 9864, 9865, 9872, 9874, 9881, 9883, 9885, 9891, (9906 corrected), 9907, 9910, 11116, 11117, 11118, 11121, 11124, 11125, 11126, 11130, 11133, 11134, 11144, 11149, 11214)
Nova M31 2008-12a images subpage

Nova M81 2017-12e, ATEL 11111 discovered 2017/12/27.091 by S.C. Williams et al.
Found in M81 at R.A. = 09h55m18s.200, Decl. = +69°04'31".10
Located 80".2 west and 36".0 north of the center of M81
Mag 20.6:12/27, Type unknown

Nova M81 2017-12d, ATEL 11111 discovered 2017/12/27.091 by S.C. Williams et al.
Found in M81 at R.A. = 09h55m35s.890, Decl. = +69°03'37".60
Located 14".6 east and 17".5 south of the center of M81
Mag 19.1:12/27, Type unknown

Nova M81 2017-12c, ATEL 11111 discovered 2017/12/19.153 by S.C. Williams et al.
Found in M81 at R.A. = 09h54m54s.870, Decl. = +69°06'33".60
Located 205".1 west and 158".5 north of the center of M81
Mag 20.3:12/19, Type unknown

AT2017jfz (= Nova M31 2017-06j?) (= kait-17do) (= PNV J00425962+4121290), ATEL 10547 discovered 2017/06/29.984 by Kamil Hornoch and Petr Fatka
Found in M31 at R.A. = 00h42m59s.620, Decl. = +41°21'29".00
Located 172".3 east and 320".5 north of the center of M31 (Discovery image) (George Carey image) (George Carey image prediscovery) (LOSS image)
Mag 17.6:12/29, Type unknown (References: CBAT TOCP)

Nova M81 2017-12b? (= PNV J09553619+6901599), ATEL 11098 discovered 2017/12/26.016 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m36s.190, Decl. = +69°01'59".90
Located 16".2 east and 115".2 south of the center of M81 (Discovery image)
Mag 20.5:12/27, Type unknown (References: CBAT TOCP)

AT2017jdm, (= Nova M31 2017-12a?) (= Nova M31 2007-10b) (= PNV J00432946+4117137), CBAT TOCP discovered 2017/12/24.693 by Flavio Castellani (ISSP)
Found in M31 at R.A. = 00h43m29s.460, Decl. = +41°17'13".70
Located 512".0 east and 68".0 north of the center of M31 (Andrea Mantero image)
Mag 16.8:12/24, Type EGV (Recurrent nova) (References: ATEL 11088, ATEL 11091)

AT2018A (= TCP J00333837+4836022), CBAT TOCP discovered 2017/12/22.406 by Koichi Itagaki
Found in NGC 147 at R.A. = 00h33m38s.370, Decl. = +48°36'02".20
Located 260".6 east and 330".7 north of the center of NGC 147 (Discovery image) (Joel Nicolas image)
Mag 18.0:1/2 (15.9:12/23), Type FeII (zhost=-0.000644) (References: ATEL 11087, ATEL 11101, TNS)

Nova M31 2017-12c? (= PNV J00412371+4114594) (= M31N 1966-08a?), CBAT TOCP discovered 2017/12/20.851 by Emmanuel Conseil
Found in M31 at R.A. = 00h41m23s.710, Decl. = +41°14'59".40
Located 906".0 west and 74".0 south of the center of M31 (Discovery image) (Confirmation image) (Joel Nicolas image)
Mag 17.7:12/22 (15.5:12/20), Type dMe flare star (References: ATEL 11094)

AT2017ixs, TNS discovered 2017/12/15.740 by George Carey
Found in M31 at R.A. = 00h43m56s.000, Decl. = +41°32'11".30
Located 808".0 east and 962".8 north of the center of M31 (Discovery image)
Mag 19.5:12/15, Type unknown

AT2017ixr, TNS discovered 2017/12/15.740 by George Carey
Found in M31 at R.A. = 00h44m01s.520, Decl. = +41°30'18".40
Located 870".3 east and 849".9 north of the center of M31 (Discovery image) (George Carey image (photometry image))
Mag 19.0:12/15, Type FeII (References: ATEL 11162)

Nova M81 2017-12a? (= PNV J09553813+6902204), ATEL 11029 discovered 2017/12/02.127 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m38s.130, Decl. = +69°02'20".40
Located 26".6 east and 94".7 south of the center of M81 (Discovery image)
Mag 18.9:12/2, Type unknown

AT2017ilm (= Nova M31 2017-11f?) (= PNV J00425789+4118447) (= ATLAS17njl), CBAT TOCP discovered 2017/11/19.402 by Koichi Nishiyama and Fujio Kabashima
Found in M31 at R.A. = 00h42m57s.890, Decl. = +41°18'44".70
Located 153".0 east and 156".0 north of the center of M31 (Discovery image) (Peiyuan Sun and Tao Chen image) (Geroge Carey image) (Robert Spellman image) (Robert Spellman image) (Robert Spellman image) (Joel Nicolas image)
Mag 17.7:11/27 (16.6:11/20), Type unknown (References: TNS)

Nova M31 2017-11a? (= AT2017hvi) (= PTSS-17zap) (= TCP J00425419+4130425), TNS discovered 2017/11/04.695 by PMO-Tsinghua Supernova Survey (PTSS)
Found in M31 at R.A. = 00h42m54s.240, Decl. = +41°30'42".94
Located 111".6 east and 874".4 north of the center of M31 (George Carey image) (Nick James image) (XOSS image) (Nick James image) (Robert Spellman image) (Robert Spellman image) (Joel Nicolas image) (George Carey image) (Marc Serrau image) (Rafael Benavides image)
Mag 18.6:12/25 (17.7:11/8), Type FeII (References: ATEL 10990, ATEL 10998, ATEL 11095, ATEL 11108)

archive.gif For Novae which have faded below 18th magnitude, you will have to look in the archives
Current supernovae Current Extragalactic Novae
Other supernovae from 2017 Other Extragalactic Novae from 2017 Unconfirmed objects from 2017
Supernovae from 2016 Extragalactic Novae from 2016 Unconfirmed objects from 2016

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