Extragalactic Novae

Much of this data comes from IAU 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.   Please note that I do not keep track of galactic novae.  

.  

Nova M31 2010-07b? unannounced, discovered 2010/07/10.210 by Kamil Hornoch
  • Found in M31 at R.A. = 00h43m07s.50, Decl. = +41°17'58".6
  • Located 261.2" east and 110.1" north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 18.8, Extragalactic Nova

    • Nova M33 2010-07a, CBET 2375 discovered 2009/01/07.54 by Koichi Nishiyama and Fujio Kabashima
  • Found in M33 at R.A. = 01h33m36s.86, Decl. = +30°46'22".2
  • Located 181" west and 405" north of the center of NGC 598 (= M33) (Discovery image) (Joseph Brimacombe image) (Joseph Brimacombe image) (Joseph Brimacombe image)
  • Mag 19.3 (17.1), Extragalactic Nova (References: ATEL 2760, (CBET 2374 corrected); CBAT M33 page)

    • Nova M32 2010-07a CBET 2379 discovered 2010/07/09.066 by Kamil Hornoch
  • Found in M32 at R.A. = 00h42m32s.43, Decl. = +40°53'36".5
  • Located 107".1 west and 99".3 north of the center of NGC 221 (= M32) (Discovery image) (Joseph Brimacombe image)
  • Mag 19.5, Extragalactic Nova

    • Nova M31 2010-07a CBET 2358, discovered 2010/07/07.036 by Kamil Hornoch and Petr Zasche
  • Found in M31 at R.A. = 00h43m20s.13, Decl. = +41°21'23".7
  • Located 403.4" east and 315.2" north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 17.3, Extragalactic FeII Nova (Prieto spectrum) (References: ATEL 2727, CBET 2391, CBAT M31 page)

    • Nova M31 2010-06d CBET 2347, discovered 2010/06/24.02 by Wolfgang Pietsch, M. Henze, and Vadim Burwitz; Marek Wolf and Kamil Hornoch
  • Found in M31 at R.A. = 00h42m55.56s, Decl. = +41°19'25.5"
  • Located 127" east and 197" north of the center of NGC 224 (= M31) (Discovery image) (Kamil Hornoch image)
  • Mag 19.24 (18.3), Extragalactic Nova (References: ATEL 2713, CBET 2391, CBAT M31 page)

    • Nova M31 2010-06c CBET 2343, discovered 2010/06/26.084 by Vadim Burwitz
  • Found in M31 at R.A. = 00h44m04.48s, Decl. = +41°28'34.2"
  • Located 902" east and 746" north of the center of NGC 224 (= M31) (Discovery image) (Kamil Hornoch image) (Kamil Hornoch image)
  • Mag 18.95 (17.8), Extragalactic Nova (References: ATEL 2697, CBET 2391, CBAT M31 page)

    • Nova M31 2010-06b CBET 2342, discovered 2010/06/28.014 by Kamil Hornoch and Petra Hornochova
  • Found in M31 at R.A. = 00h44m22s.46, Decl. = +41°28'14".5
  • Located 1105" east and 726" north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 19.2, Extragalactic FeII Nova (Prieto spectrum) (References: CBET 2391, CBAT M31 page)

    • Nova M31 2010-06a CBET 2341, discovered 2010/06/28.014 by Kamil Hornoch and Petra Hornochova
  • Found in M31 at R.A. = 00h43m07s.52, Decl. = +41°19'48".7
  • Located 261".4 east and 220".2 north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 18.0, Extragalactic FeII Nova (Prieto spectrum) (References: CBET 2391, CBAT M31 page)

    • Nova M81 2010-06d, CBET 2338 discovered 2010/06/14.893 by Kamil Hornoch et. al.
  • Found in M81 at R.A. = 09h55m34s.96, Decl. = +69°03'51".5
  • Located 9".6 east and 3".6 south of the center of NGC 3031 (= M81) (Discovery image)
  • Mag 20.0, Extragalactic Nova (References: CBAT M81 page)

    • Nova M81 2010-06c, CBET 2338 discovered 2010/06/14.893 by Kamil Hornoch et. al.
  • Found in M81 at R.A. = 09h55m31s.00, Decl. = +69°04'03".3
  • Located 11".6 west and 8".2 north of the center of NGC 3031 (= M81) (Discovery image)
  • Mag 19.6, Extragalactic Nova (References: CBAT M81 page)

    • Nova M81 2010-06b, CBET 2332 discovered 2010/06/11.164 by Kamil Hornoch et. al.
  • Found in M81 at R.A. = 09h55m19s.39, Decl. = +69°06'20".6
  • Located 73".8 west and 145".5 north of the center of NGC 3031 (= M81) (Discovery image) (Joseph Brimacombe image)
  • Mag 19.9, Extragalactic Nova (References: CBET 2338, CBAT M81 page)

    • Nova M81 2010-06a, CBET 2332 discovered 2010/06/11.164 by Kamil Hornoch et. al.
  • Found in M81 at R.A. = 09h55m48s.85, Decl. = +69°03'26".4
  • Located 84".0 east and 28".7 south of the center of NGC 3031 (= M81) (Discovery image) (Joseph Brimacombe image)
  • Mag 21.3, Extragalactic Nova (References: CBET 2338, CBAT M81 page)

    • Nova M106 2010 (= PS1-1000254) ATEL 2680, discovered 2010/06/03.30 by PS1 Science consortium
  • Found in NGC 4258 at R.A. = 12h20m55.22s, Decl. = +46°49'55".5
  • Located 35" from the the center of NGC 4258 (= M106)
  • Mag 22.4, Extragalactic Nova

    • Nova M31 2010-05a CBET 2305, discovered 2010/05/28.035 by Kamil Hornoch, M. Wolf, and P. Hornochova; Koichi Nishiyama and Fujio Kabashima
  • Found in at R.A. = 00h42m35.88s, Decl. = +41°16'37".4
  • Located 95.2" west and 28.9" north of the center of NGC 224 (= M31) (Discovery image) (Kamil Hornoch image) (Joseph Brimacombe image)
  • Mag 18.1 (17.4), Extragalactic FE II Nova (References: CBET 2319, 2341, 2391, CBAT M31 page)

    • archive.gif For Novae which have faded below 18th magnitude,
    you will have to look in the archives
    Current supernovae
    Other supernovae from 2010 other extragalactic Novae from 2010
    Supernovae from 2009 Extragalactic Novae from 2009

    Links

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

    Please send feedback to David Bishop dbishop@vhdl.org