According to IAUC 7530, T. Puckett and his colleague discovered a
bright SN (discovery mag 14.9) in the very neighbouring galaxy.
The position is about 2" west and 21" south of the center of the nearly
face-on spiral (SA(rs)c) galaxy NGC 3810. NGC 3810 has produced
SN Ib 1997dq which was discovered at mag 15.0 after maximum.
The recession velocity of this galaxy is about 900km/s, so it can be as
near as the Virgo cluster. If so, the typical SN Ia will reach mag 12 or
so at the maximum