[vsnet-alert 6891] SN 2001fz in NGC 2280

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

Dear SN watchers,

  IAUC 7753 informed the discovery of SN in the neighbouring galaxy
NGC 2280 in Canis Major.

  The discovery was made by Beijing team on Nov. 15.8 (when it was mag
about 17.4), then it was confirmed on the next day (mag about 17.0).
Surely it is a fresh object in the rising phase.  The position of the
new object is: R.A. = 6h44m50s.26, Decl. = -27o37'12".7 (2000.0),
which is about 16" east and 66" north of the nucleus of the inclined
spiral (SA(s)cd) galaxy NGC 2280.  It locates the outermost part of
the arm region. 

  The host galaxy is the late type, so there are many H II regions on
the disk.  In addition, because of low galactic latitude (b = -13o.5),
there are many foreground stars around the galaxy.  Among them, the
brightest ones (on the same side as SN) are listed below.

   position (2000.0)       mag       GSC ID   from SN  from nucleus
6:44:51.17  -27:37:30.5  12.68(GSC) 6529-945   24"SE    50"N,30"E
     53.75      36:55.2  14.6r,15.6b  --       50"ENE   86"N,62"E

  On the midpoint of these two stars, there is a somewhat bright knot
of the arm, which is brither in DSS1 B image than in DSS2 R.  In 
addition, note that the USNO_A2.0 position of the southwestern star
(USNO position end figures 48s.16, 38'47".7) seems incorrect, so it
should not be used as the astrometry reference.  

  The expected maximum for typical SN Ia in this galaxy is mag about
14.0 (included the Galactic extinction), and mag about 16 for typical
SN II.  The intense follow-up photometry for this young object is
surely urged, as well as the spectroscopic follow-ups.

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

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