ASASSN-21qj
Ice giants colliding
Header image: The synestia formed from the collision of two ice giant exoplanets, by M.A. Garlick.
Animation of the ASASSN-21qj collision by the LCOGT observatory team. Animation by LCOGT.
Whilst looking for transiting ring systems in the ASAS-SN survey, one light curve stood out as a good candidate - ASASSN-21qj.