[vsnet-alert 1932] SN 1998cu in IC 1525

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

Dear Supernova observers,

  Today's IAUCs tell that three new (apparant) supernovae have
discovered.  Among them, 1998cu in IC 1525 will potentially be able to
reach the good magnitudes to amateur photometry.  

  According to IAUC 6958,  Lick Observatory SN search team (as a part
of cooperative program with BAO servey) has discovered it on June
29.4UT (at 18.4 mag) and confirmed on June 30.4UT (18.1 mag).  The
coordinates of this new object is R.A. = 23h59m12s.95, Decl. =
+46o52'31".8 (2000.0), which is 29" west and 50" south of the host
center. 

  Host galaxy IC 1525 is SBb galaxy, and SN lies the outermost part of
its arm.  The recession velocity of IC 1525 is 5022 km s-1 (V21),
which indicates that typical SNeIa on this distance will be at 15.8 on
its maximum.  

  Note that this galaxy is rather near to the Milky way (b = -15),
there are many confusing field stars.  For observing this SN, please
take notice of them.  I collect them from DSS1 image as below:

      offset
A   45"W  57"S
B   31"W  29"S
C   39"W   7"S
D   25"W   3"N
E   10"E  34"S
F   51"W   6"S
G   24"W  39"S
SN  29"W  50"S   (apparent magnitude order)

  They are on the southern part of the host; there are as many field
stars or blobs of the host on the northern side or nearer to the host
center.

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

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp