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 An archive of the updates to this page is available.

CBET has a naming convention now for novae in M31.   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.   All extragalactic novae are now to follow this naming convention.   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.  

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Nova M31 2009-06c, ATEL 2105, discovered 2009/06/30.045 by Wolfgang Pietsch et. el.
  • Found in M31 at R.A. = 00h42m10s.36, Decl. = +41°12'19".9
  • Located 383" west and 229" south of the center of NGC 224 (= M31) (Discovery image)
  • Mag 17.7, Extragalactic Nova

    • Nova M31 2009-06b, ATEL 2090, discovered 2009/06/21.019 by Petko Nedialkov et. el.
  • Found in M31 at R.A. = 00h42m33s.92, Decl. = +41°15'52".9
  • Located 117" west and 15.6" south of the center of NGC 224 (= M31)
  • Mag 21.28, Extragalactic Nova

    • Nova M31 2009-06a, unnanounced, discovered 2009/06/15.7232 by Koichi Nishiyama and Fujio Kabashima
  • Found in M31 at R.A. = 00h45m45s.83, Decl. = +41°59'59".9
  • Located 2046" east and 2589" north of the center of NGC 224 (= M31)
  • Mag 17.4, Extragalactic Nova (References: CBAT M31 page)

    • 2 possible extragalactic novae ATEL 2056 in NGC 4461 and M89.

    Nova M31 2009-05b, unnanounced, discovered 2009/05/17.069 by Kamil Hornoch
  • Found in M31 at R.A. = 00h42m33s.98, Decl. = +41°10'55".9
  • Located 116.7" west and 312.6" south of the center of NGC 224 (= M31) (Discovery image)
  • Mag 18.3, Extragalactic Nova (References: CBAT M31 page)

    • Nova M31 2009-05a, unnanounced, discovered 2009/05/17.069 by Kamil Hornoch
  • Found in M31 at R.A. = 00h42m45s.04, Decl. = +41°15'21".2
  • Located 8.1" east and 47.3" south of the center of NGC 224 (= M31) (Discovery image)
  • Mag 17.6, Extragalactic Nova (References: ATEL 2090, CBAT M31 page)

    • Nova LMC 2009 2, IAUC 9042 discovered 2009/05/04.994 by W. Liller
  • Found in LMC at R.A. = 5h31m26s.42, Decl. = -67°05'39".4
  • Located near the center of LMC
  • Mag 12.1, Extragalactic Nova

    • 4 nova candidates, Coma and Virgo Exploration for Transients, ATEL 2031, in M84, M60, and M87.
    Nova in NGC 2403, P60-Fast Transients In Nearby Galaxies (PDF) ATEL 1984, Mag 20.6
    3 nova candidates, Coma and Virgo Exploration for Transients, ATEL 1967, in NGC 4526, NGC 4459, and M60.
    1 nova candidate, Coma and Virgo Exploration for Transients, ATEL 1936, (COVET-090219A in M60)

    Nova M31 2009-02b, ATEL 1935, discovered 2009/02/20.13 by Wolfgang Pietsch
  • Found in M31 at R.A. = 00h42m27s.77, Decl. = +41°13'42.4"
  • Located 3'7" west and 2'27" south of the center of NGC 224 (= M31) (Discovery image)
  • Mag 18.5 (18.0), Extragalactic Nova (References: CBAT M31 page)

    • Nova M81 2009-02a, ATEL 1934 discovered 2009/02/13.404 by P60-Fast Transients In Nearby Galaxies (PDF)
  • Found in M81 at R.A. = 09h55m35s.96, Decl. = +69°01'51".0
  • Located 15" east and 124" south of the center of NGC 3031 (= M81)
  • Mag 21.5 (20.1), Extragalactic Nova

    • Nova LMC 2009, IAUC 9019 discovered 2009/02/05.067 by W. Liller
  • Found in LMC at R.A. = 05h40m44s.20, Decl. = -66°40'11".6
  • Located 17' west and 3° north of the center of LMC (Joseph Brimacombe image)
  • Mag 11.8 (2/5:10.6), Extragalactic (Recurrent?) Nova (References: ATEL 1930, IAUC 9024, ATEL 2001, 2025)

    • Nova M31 2009-02a, ATEL 1927, discovered 2009/02/06.429 by Koichi Nishiyama and Fujio Kabashima; E. Ovcharov et al.
  • Found in M31 at R.A. = 00h43m43s.85, Decl. = +41°36'39.9"
  • Located 670" east and 1230" north of the center of NGC 224 (= M31) (Nishiyama discovery image)
  • Mag 16.8, Extragalactic Fe II Nova (References: ATEL 1928, CBAT M31 page)

    • Nova M31 2009-01a, ATEL 1924, discovered 2009/01/28.422 by Koichi Nishiyama and Fujio Kabashima
  • Found in M31 at R.A. = 00h44m44s.03, Decl. = +41°23'28".3
  • Located 1350" east and 440" north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 19.4, Extragalactic Fe II Nova (References: CBAT M31 page)

    • Nova M33 2009-01a, CBET 1659 discovered 2009/01/07.54 by Koichi Nishiyama and Fujio Kabashima
  • Found in M33 at R.A. = 01h33m40s.42, Decl. = +30°25'42".1
  • Located 136" west and 835" south of the center of NGC 598 (= M33) (Discovery image)
  • Mag 17.8, Extragalactic He/N Nova (References: ATEL 1900)

    • Nova M31 2008-12b, ATEL 1886, discovered 2008/12/30.207 by Koichi Nishiyama and Fujio Kabashima; P60-Fast Transients In Nearby Galaxies (PDF)
  • Found in M31 at R.A. = 00h43m05s.03, Decl. = +41°17'52".25
  • Located 233".4 east and 103".8 north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 19.4, Extragalactic Nova (References: CBAT M31 page)

    • Nova M31 2008-12a, unnanounced, 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 1854" east and 2282" north of the center of NGC 224 (= M31) (Discovery image)
  • Mag 19.9 (12/26:18.7), Extragalactic Nova (References: CBAT M31 page)

    • Nova M81 2008-12b, CBET 1653 discovered 2008/12/29.202 by Kamil Hornoch and P. Sedinova; P60-Fast Transients In Nearby Galaxies (PDF)
  • Found in M81 at R.A. = 09h55m38s.15, Decl. = +69°01'43".6
  • Located 26.7" east and 131.4" south of the center of NGC 3031 (= M81) (Discovery image) (Kamil Hornoch image)
  • Mag 18.7, Extragalactic Fe II Nova (References: ATEL 1887)

    • Nova M81 2008-12a, CBET 1632 discovered 2008/12/02.287 by P60-Fast Transients In Nearby Galaxies (PDF); Kamil Hornoch
  • Found in M81 at R.A. = 09h55m16s.920, Decl. = +69°02'17".68
  • Located 87.9" west and 97.7" south of the center of NGC 3031 (= M81) (Discovery image)
  • Mag 21.2 (12/6:20.2), Extragalactic Nova (References: ATEL 1880)

    • 2 novae candidates in M31 ATEL 1857 Discovery images

    Nova M31 2008-11c = Supernova 2008hz

    Nova M31 2008-11b, CBET 1588, discovered 2008/11/26.498 by Koichi Itagaki
  • Found in M31 at R.A. = 00h42m26s.51, Decl. = +42°15'36".7
  • Located east and north of the center of NGC 224 (= M31) (Discovery image) (Koichi Itagaki image) (Stan Howerton image) (Diego Rodriguez image)
  • Mag 16.6 (11/26:14.7), Galactic variable (not a nova) (References: ATEL 1867, CBET 1611, CBAT M31 page)

    • Nova M82 2008 2, ATEL 1854 discovered 2008/11/19.536 by P60-Fast Transients In Nearby Galaxies (PDF)
  • Found in M82 at R.A. = 09h55m58s.390, Decl. = +69°40'56".17
  • Located south of the center of NGC 3034 (= M82) (Discovery image (larger version))
  • Mag 20.6, Extragalactic Nova

    • 3 novae candidates in M31 ATEL 1845 Discovery images

    Nova M31 2008-11a, ATEL 1832, discovered 2008/11/04.718 by K. Nishiyama and F. Kabashima; K. Hornoch
  • Found in M31 at R.A. = 00h41m32s.26, Decl. = +41°06'01".2
  • Located 814" west and 607" south of the center of NGC 224 (= M31) (Discovery image) (Martin Henze image)
  • Mag 16.5, Extragalactic He/N/Fe II/"Hybrid" Nova (References: CBAT M31 page)

    • Nova M81 2008 3, ATEL 1826 discovered 2008/10/21.501 by M. M. Kasliwal
  • Found in M81 at R.A. = 09h55m36s.105, Decl. = +69°03'22".04
  • Located 15.8" east and 33.1" south of the center of NGC 3031 (= M81) (Discovery image)
  • Mag 21.5, Extragalactic Nova

    • Nova M31 2008-10b, ATEL 1790 discovered 2008/10/18.91 by Martin Henze et el.
  • Found in M31 at R.A. = 00h43m02s.42, Decl. = +41°14'09".9
  • Located 204" east and 120" south of the center of NGC 224 (= M31) (Discovery image)
  • Mag 18.3, Extragalactic FeII Nova (References: ATEL 1818, 1871; CBAT M31 page)

    • Nova M31 2008-10a, unnanounded discovered 2008/10/07.711 by Koichi Nishiyama
  • Found in M31 at R.A. = 00h42m44s.35, Decl. = +41°54'44".2
  • Located 576" east and 2316" north of the center of NGC 224 (= M31) (Discovery image) (Koichi Nishiyama image)
  • Mag 17.1, Extragalactic Nova (References: ATEL 1789; CBAT M31 page)

    • Nova M81 2008 2, CBET 1528 discovered 2008/09/25.49 by M. M. Kasliwal
  • Found in M81 at R.A. = 09h55m59s.35, Decl. = +69°05'57".1
  • Located 2.35' east and 2.03' north of the center of NGC 3031 (= M81) (Discovery image)
  • Mag 20.8, Fe II Extragalactic Nova (References: ATEL 1764)

    • archive.gif For Novae which have faded below 18th magnitude,
    you will have to look in the archives
    Current supernovae
    Other supernovae from 2008 other extragalactic Novae from 2008
    Supernovae from 2007 Extragalactic Novae from 2007

    Links

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

    For Novae which have faded below 18th magnitude,
    you will have to look in the archives
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    Please send feedback to David Bishop dbishop@vhdl.org