SN 2001ef
M. Armstrong discovered SN 2001ef on September 9 at mag 16.1.
The position is about 1" east and 8" north of the center of the
barred-spiral galaxy IC 381 = UGC 3130. From the recession
velocity of the host galaxy of 2476 km/s, the expected maximum of
the normal SN Ia is mag about 14.3. The SN did not detected on the
image taken by the discoverer on Aug. 29, so it seems to be discovered
in its early phase. On the other hand, the multicolor photometry
at Apache Point observatory (Sept. 10.44) shows that it seems to
be somewhat red, indicating its somewhar old nature. It can be
reddened by the interstellar (or circumstellar) matter
(vsnet-campaign-sn 238).
This SN turned out to be of SN Ic about a week after maximum
on September 12, which is consistent with the reported magnitudes
(mag about 16.0 on Sept. 9-10)
(vsnet-campaign-sn 239).