[新闻] This Is SKY & TELESCOPE’s AstroAlert for Extragalactic Supernovae

Issued 7 January, 2003:

           THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
                 25 Birch Street, Cambridge, MA 02138 USA
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                AAVSO ALERT NOTICE 299 (January 7, 2003)

SUBJECT: 0242-30B SUPERNOVA 2003B NEAR NGC 1097

0242-30B SUPERNOVA 2003B NEAR NGC 1097 (FORNAX)

Event: Supernova

Discovered By: R. Evans, Hazelbrook, N.S.W. (IAUC No. 8042)

Discovery Magnitude: ~15.0 visual (0.41-m reflector; IAUC No. 8042)

Discovery Date: January 5.5 UT (IAUC No. 8042)

R.A. of NGC 1097 (2000): 02h 46.3m Decl. of NGC 1097 (2000): -30o 17' (IAUC
No. 8042)

Supernova Position: 90" west and 175" north of the nucleus of NGC 1097
(Also see Note 1; IAUC No. 8042)

Spectrum: Resembles that of a type-II supernova <2 - 3 weeks past maximum
(IAUC No. 8042)

AAVSO Chart(s):  Thompson & Bryan Supernova Search Chart with the addition
of USNO A2.0 magnitudes

  for full 300 dpi image
    http://www.aavso.org/charts/FOR/NGC_1097/SN2003B.GIF

  for web browser printable image
    http://www.aavso.org/cgi-bin/shr ... GC_1097/SN2003B.GIF

Report Object to the AAVSO as: 0242-30B SN 2003B

Observations Reported to the AAVSO: January 06.5100 UT, 15.2:, T. Cragg,
Coonabarabran, N.S.W.

Notes: 1. Evans reports that the supernova is also located 40" due east of the nearby small elliptical galaxy NGC
      1097A (IAUC No. 8042).  
      2. See the full announcement in International Astronomical Union
      Circular (IAUC) No. 8042.

SUBMIT OBSERVATIONS TO THE AAVSO

We encourage observers to submit observations via our web site (online data
submission tool WebObs), or by email in AAVSO format to
observations@aavso.org. If you do not have AAVSO Observer Initials, please
contact Headquarters so we may assign them to you. The answering machine at
AAVSO Headquarters is on nights and weekends; use our charge-free number
(888-802-STAR = 888-802-7827) to report your observations, or report them
via fax (617-354-0665).

Many thanks for your valuable astronomical contributions and your efforts.

Good observing!

Kerriann H. Malatesta
Technical Assistant

On behalf of
Janet A. Mattei
Director