[vsnet-alert 6989] SN 2002A in UGC 3804

[Hitoshi YAMAOKA <yamaoka@rc.kyushu-u.ac.jp>]

Dear SN watchers,

  IAUC 7786 informed that the first SN of this year is discovered by
Beijing team.  It lies near the north pole, and the host galaxy is
rather nearby. 

  SN 2002A was caught on Jan. 1.79 (mag about 17.4), Jan. 8.61 (mag
about 16.8) and Jan. 9.56 (mag about 16.8).  The position is R.A. =
7h22m36s.14, Decl. = +71o35'41".5 (equinox 2000.0), which is about
7" east and 15" south of the nucleus of a spiral (Scd:) galaxy UGC
3804.  It is superimposed on the southern arm.  

  Note that there is a foreground star (rmag about 16.5, bmag about
17.5) superimposed on the galaxy and quite near from the SN.  The
position end figure of this foreground star is 34s.95, 43".7
(uncertainty about 0".5), which is about 6" west and 2" north of the
SN, and is about 2" east and 13" south of the nucleus of UGC 3804.
Please do not confuse them (the east one is SN!), and take care in
photometry to separate them.  It should be quite difficult for small
telescopes....

  Also note that there is a foreground star having a large proper
motion.  It locates about 2'.3 due east of the UGC 3804, and has the
proper motion about 0".1/yr.  

  UGC 3804 is rather nearby galaxy (v_r = 2887 km/s).  The expected
maximum for the typical SN Ia on this galaxy is mag about 14.7.  The
reported brightness is rising (0.6 mag during 8 days).  The
spectroscopic confirmation (also type determination) and the follow-up
magnitude estimates is quite urged.

Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka@rc.kyushu-u.ac.jp

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