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[vsnet-campaign-sn 291] SN 2001ib in NGC 7242
Dear SN watchers,
A fairly bright SN (unfiltered CCD mag about 15.3 on the discovery =
Dec. 7.8) in the evening sky is discovered by two U.K. SN hunters
M. Armstrong and R. Arbour independently. It seems to be overluminous
even as SN Ia.
SN 2001hf is located at: R.A. = 22h15m38s.72, Decl. = +37o17'56".0
(2000.0), which is about 10" west and 1" north of the nucleus of the
apparently spiral galaxy NGC 7242. Arbour provided the other
position, but it seems too west considering the offset. The SN is
superimposed on the bulge region.
Note that there is fairly bright and small companion galaxy on some
0'.5 east-northeast of the nucleus: there are also many foreground
star because of its low Galactic latitude (b = -16o).
The expected maximum for the typical unreddened SN Ia in this galaxy
is mag about 16.0, and the Galactic extinction for this position is
expected as large as A_R = 0.4. So, the observed (discovery
mag 15.3) brightness is unusually large. The further followup for
this SN is highly encouraged.
Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japoan
yamaoka@rc.kyushu-u.ac.jp
vsnet-adm@kusastro.kyoto-u.ac.jp
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