Already announced a few days ago (cf. RAPAS observation list starting 2026-07-03 - #3 by Fabian.Schussler), SN 2026, a supernova in NGC 3310 at only 10.66 Mpc, continues to become brighter. It is now approaching ~12mag!
Photometric but especially spectroscopic follow-up is highly encouraged to pin down the characteristics of the supernova! Feel free to share your results right here…
A sequence of spectrum (3 observations) taking on a 10-inch spectrograph and a TinyStar’Ex spectrograph from Antibes (France). A probable rare Ia type SN (note emission fron circumstellar matter).
Christian
Hi, that’s very cool, thank you for collecting these spectra! I was also trying to get some data with big facilities, but at the moment everyone is trying to follow-up this thing. Very strong interaction indeed, that’s perfect for multi-wavelength observations
