Categories Astronomy M 101 Post author By Luca Zanini Post date January 21, 2023 No Comments on M 101 The spiral galaxy M 101 or NGC 5457 in the constellation Ursa Major, photographed on January 14, 2023 at 01:51:59 universal time, 02:51:59 local time for an exposure time of 30 minutes. Tags galaxy, m101, ngc5457, spiral galaxy