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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Nova M31 2017-10a? (= PNV J00423905+4123006), ATEL 10849 discovered 2017/10/14.039 by Kamil Hornoch, H. Kucakova, and M. Wolf
Found in M31 at R.A. = 00h42m39s.050, Decl. = +41°23'00".60
Located 59".4 west and 412".1 north of the center of M31 (Discovery image) (Nick James image)
Mag 18.8:10/14, Type unknown (References: CBAT TOCP)

Nova M31 2017-09e? (= PNV J00421219+4110192), CBAT TOCP discovered 2017/09/24.444 by Koichi Itagaki
Found in M31 at R.A. = 00h42m12s.190, Decl. = +41°10'19".20
Located 363".0 west and 349".0 south of the center of M31 (Discovery image) (Yasuo Sano image) (Yasuo Sano image) (Yasuo Sano image) (George Carey image) (Nick James image)
Mag 16.4:9/28 (16.3:9/26), Type FeII (References: ATEL 10814)

Nova M81 2017-09b? (= PNV J09561042+6906106), ATEL 10767 discovered 2017/09/18.129 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h56m10s.420, Decl. = +69°06'10".60
Located 199".5 east and 135".5 north of the center of M81
Mag 20.7:9/18, Type unknown

AT2017gyc (= Nova M81 2017-09a?) (= PNV J09553590+6904228) (= Gaia17cjg), ATEL 10767 discovered 2017/09/18.129 by Kamil Hornoch et al.
Found in M81 at R.A. = 09h55m35s.900, Decl. = +69°04'22".80
Located 14".6 east and 27".7 north of the center of M81
Mag 18.7:9/18, Type unknown (References: TNS, Gaia observations)

AT2017gud, (= PSP17D) TNS discovered 2017/09/17.655 by Zhijian Xu, Mi Zhang, Yi Ding, Peiyuan Sun and Xing Gao
Found in M31 at R.A. = 00h42m47s.080, Decl. = +41°16'00".30
Located 31".1 east and 8".2 south of the center of M31 (Discovery image) (Robert Spellman image) (Nick James image)
Mag 15.0:9/19, Type EGV

Nova M31 2017-09c (= AT2017gsc), TNS discovered 2017/09/13.854 by Emmanuel Conseil
Found in M31 at R.A. = 00h43m16s.100, Decl. = +41°20'08".30
Located 358".1 east and 239".8 north of the center of M31 (Nick James image) (George Carey image) (Denis Buczynski image) (Nick James image) (Thomas Langhans image)
Mag 19.3:9/20 (16.4:9/14), Type FeII (References: ATEL 10754)

Nova M31 2017-09b (= AT2017gqw) (= PNV J00425895+4126279) (= kait-17bw) (= MASTER OT J004259.00+412626.9), TNS discovered 2017/09/08.860 by George Carey
Found in M31 at R.A. = 00h42m58s.940, Decl. = +41°26'27".20
Located 164".6 east and 618".7 north of the center of M31 (Discovery image) (Nick James image) (Master image) (LOSS image) (George Carey image) (Denis Buczynski image) (Robert Spellman image) (Nick James image) (George Carey image) (Denis Buczynski image) (Ron Arbour image) (Nick James image) (Thomas Langhans image)
Mag 17.1:9/19 (16.7:9/14), Type FeII (George Carey light curve) (References: ATEL 10754, ATEL 10726)

AT2017glp, (= ASASSN-17lo) ATEL 10701 discovered 2017/09/03.319 by All Sky Automated Survey for SuperNovae (ASAS-SN)
Found in LMC at R.A. = 05h12m45s.090, Decl. = -69°57'20".05
Located 0".0 east and 0".0 north of the center of LMC
Mag 15.1:9/3, Type EGV (References: TNS)

Nova M31 2017-09a (= AT2017glc) (= PNV J00440872+4143367), TNS discovered 2017/09/01.775 by Peiyuan Sun and Xing Gao
Found in M31 at R.A. = 00h44m08s.720, Decl. = +41°43'36".70
Located 951".0 east and 1648".0 north of the center of M31 (Discovery image)
Mag 18.6:9/1, Type FeII (References: ATEL 10741, CBAT TOCP)

AT2017ggo (= PNV J00403063+4138525) (= Gaia17cdj), CBAT TOCP discovered 2017/08/20.717 by Koichi Itagaki
Found in M110 at R.A. = 00h40m30s.630, Decl. = +41°38'52".50
Located 0".0 east and 0".0 north of the center of M110 (Discovery image) (Andrea Mantero image) (Robert Spellman image) (Adriano Valvasori image) (Marc Serrau image)
Mag 17.0:8/27 (16.3:8/23), Type Extragalactic Nova (References: Gaia observations, TNS)

Nova M31 2017-08a? (= PNV J00423895+4115171), ATEL 10618 discovered 2017/08/03.840 by Kamil Hornoch and Hana Kucakova
Found in M31 at R.A. = 00h42m38s.950, Decl. = +41°15'17".10
Located 61".0 west and 51".0 south of the center of M31 (Discovery image)
Mag 17.5:8/3, Type unknown (References: CBAT TOCP)

AT2017fvz, (= kait-17bm) TNS discovered 2017/08/02.366 by Lick Observatory Supernova Search
Found in NGC 6822 at R.A. = 19h45m01s.030, Decl. = -14°46'50".74
Located 0".0 east and 0".0 north of the center of NGC 6822 (Discovery image)
Mag 16.6:08/03, Type FeII (zhost=-0.000190) (References: ATEL 10630)

AT2017fvb, (= XM13AL) TNS discovered 2017/07/31.822 by Peiyuan Sun and Xing Gao
Found in M31 at R.A. = 00h42m47s.210, Decl. = +41°16'51".20
Located 32".6 east and 42".7 north of the center of M31 (Discovery image)
Mag 17.5:7/31, Type unknown

Nova M31 2017-07d (= PSN J00390448+4046041), CBAT TOCP discovered 2017/07/20.632 by Koichi Itagaki
Found in M31 at R.A. = 00h39m04s.480, Decl. = +40°46'04".10
Located 2497".0 west and 1804".0 south of the center of M31 (Discovery image)
Mag 17.9:07/24 (17.0:7/20), Type FeII (References: ATEL 10619)

Nova M31 2017-07c? (= PNV J00424126+4116102), ATEL 10585 discovered 2017/07/19.953 by Kamil Hornoch and Petr Fatka
Found in M31 at R.A. = 00h42m41s.260, Decl. = +41°16'10".20
Located 34".5 west and 1".7 north of the center of M31 (Discovery image)
Mag 16.1:7/19, Type unknown (References: CBAT TOCP)

Nova M31 2017-07b? (= AT2017fog) (= XMd3ZX) (= PNV J00431504+4120506), TNS discovered 2017/07/19.878 by Zhijian Xu and Xing Gao; Kamil Hornoch and Petr Fatka
Found in M31 at R.A. = 00h43m14s.980, Decl. = +41°20'49".80
Located 345".7 east and 281".3 north of the center of M31 (Discovery image) (K. Hornoch, P. Fatka image) (Zhijian Xu and Xing Gao image) (Thomas Langhans image)
Mag 19.8:8/27 (16.7:7/24), Type FeII (SCOPIO spctrum) (References: ATEL 10596, CBAT TOCP, ATEL 10588)

Nova M31 2017-07a (= AT2017foa), TNS discovered 2017/07/19.128 by Emmanuel Conseil
Found in M31 at R.A. = 00h43m14s.500, Decl. = +41°33'57".20
Located 339".4 east and 1068".7 north of the center of M31 (Discovery image)
Mag 18.4:7/19, Type FeII (References: ATEL 10619)

MASTER OT J004617.94+415626.1 (= PNV J00461806+4156251), ATEL 10506 discovered 2017/06/19.197 by MASTER robotic Net
Found in M31 at R.A. = 00h46m17s.940, Decl. = +41°56'26".10
Located 2385".0 east and 2417".0 north of the center of M31 (Discovery image) (K. Itagaki image)
Mag 18.1:7/8, Type unknown (References: CBAT TOCP)

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
Other supernovae from 2016 Other Extragalactic Novae from 2016 Unconfirmed objects from 2016
Supernovae from 2015 Extragalactic Novae from 2015 Unconfirmed objects from 2015

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