Bubble Galaxy (NGC 3521) in Leo
NGC 3521 is a beautiful spiral galaxy in the southern part of Leo, nearly as bright as many Messier galaxies in Leo, Virgo and Coma Berenices. It is one of the most neglected bright galaxies in the heavens. With a brightness of mag 9.1, it is only 0.6‑magnitude fainter than M82 in Ursa Major. It is a fairly large system measuring 72’000 light-years in true physical extend, seen 29° from edge-on. NGC 3521 has a glowing, rounded appearance, giving rise to its nickname, the Bubble Galaxy. The galaxy is embedded in a huge bubble-like shells, which are likely the debris of earlier encounters and mergers.
[description from O’Meara]
Finder Chart Bubble Galaxy (NGC 3521) in Cygnus
Image created by Skychart
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