Constellation: Ursa Major
Right Ascension: 10h 38m 45.857s
Declination: +53° 30′ 11.89″
Distance: 34 million light years
Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive

SN2021gmj located in host galaxy NGC 3310 in the constellation of Ursa Major. It was discovered by  DLT40  on March 20, 2021. Last reported magnitude was 15.6 as of this entry. It was a Type II supernova, a core collapse supernova.


Telescope: Explore Scientific 127 Refractor
Camera: ZWO 1600 MM