A new dwarf in Andromeda !? (Transient Object TCP J00590972+3438357)
On Panstarrs I found the source of that explosion USNO-B1.0 1246-0014421 which signals magnitude 21.7 and then reaches magnitude 12.0. I think how much energy is released in this event!
... image on the left and mine and the one on the right taken from the POSS2 archive for comparison.
Camera: Atik 414 Ex Mono
Objective: Ritchey-Chrétien Astrograph 10''
Poses: 15x120''
Pixinsight/ Ps