SN 2026sqf

SN 2026sqf: magnitude 11.2; in NGC 3310; found 2026-07-08; by Patrick Wiggins.

Position

RA 159.69984°, Dec 53.50947°

Found

2026-07-08

Found by

Patrick Wiggins

Host

NGC 3310

Brightness

magnitude 11.2

Worth looking for until

2026-11-30

The brightest supernova of the year, in the starburst galaxy NGC 3310 in Ursa Major, and still near eleventh magnitude a month after it was found. A Type Ia-CSM: a white dwarf that detonated inside gas its own system had already shed, so the explosion goes on lighting that gas from within — which is why this one has stayed bright rather than fading in a fortnight. Within reach of a small telescope under a dark sky.

SN 2026sqf — IAU Transient Name Server

Point Bhagol at it — opens the app if you have it, and this page if you do not.