M31 Nova Candidate is a Background Supernova
ATel #1866; R. M. Quimby, M. M. Kasliwal (Caltech)
on 7 Dec 2008; 03:13 UT
Credential Certification: Robert Quimby (quimby@astro.as.utexas.edu)
Subjects: Optical, Nova, Supernovae, Transient
We observed the optical transient located at RA = 00h43m18.65s DEC =
+42o10'14.3" (J2000), which is listed on David Bishop's
Extragalactic Novae
page as a possible M31 nova discovered by Koichi Itagaki, on Dec 4.22
UT with the Double Beam Spectrograph (DBSP) on the Palomar 200" Hale
Telescope. The transient shows broad absorption features consistent
with a normal Type Ia supernova near maximum light at an approximate
redshift of z=0.07.
