Challenge #4 – M90, Spiral Galaxy in Virgo
Target Type R. A. Dec. Constellation Magnitude Size M90 (NGC 4569) Spiral Galaxy 12h 36m 50s +13° 09′ 48″ Virgo +9.36 9.1×3.8 arcmin Overview On one night, 18 March 1781, Charles Messier discovered eight separate galaxies. M90 is one of those eight. At the time, astronomers weren’t aware of galaxies and so he classed it …