Messier 69. NGC 6637

Click on the image for a full resolution version         See this image also on Instagram     Messier 69 (M69) is a metal-rich globular cluster located 29,700 light years away, in the constellation Sagittarius. Its metallicity is just one fifth of that of the Sun, but approximately ten times that of the typical globulars. … Continue reading Messier 69. NGC 6637