images

Flare star - Artwork

by

Nasa/GSFC/Novapix

Reference

a-eto99-10062

Date

2017-01-28

DG Canum Venaticorum (DG CVn) is a binary star system in the northern constellation of Canes Venatici. On 2014 April 23, 2014, a gamma-ray superflare event was observed by the Swift satellite coming from the position of this system. It may have been perhaps the most luminous such events ever observed coming from a red dwarf star.