Supernova (SN 2020) in M61,
(Swelling Spiral galaxy)
Photo taken at the 18th of Mai 2020, Newton 12,5", 1900mm. Click for bigger
Photo from the 5th of April 2021, Newton 12,5", 1900mm: .. the supernova has gone
*mag = > light magnitude: Up to mag +3-4 stars are visible nearby cities with the naked eye, in very dark areas the seeing limit can reach up to mag +6-7.
The more higher numerical value is given, the more weaker are the objects. E.g. - 4,7 mag, Venus glittering; - 1,0 Sirius, brightest star; +3,5 M31 Andromeda, pale shiny oval)
All Deep Sky observations