Catalog: Messier 22 / NGC 6656
Constellation: Sagittarius
Telescope: 11-inch Schmidt-Cassegrain CPC
Camera: Canon Digital Rebel EOS SL1
Exposure: 30 seconds (I think)
This is a globular cluster–sort of a mysterious object. According to Cambridge, “there is no widely accepted theory of globular cluster formation.” Of the ones I’ve heard, my favorite is the idea is that they are the cores of small galaxies that have been devoured by larger galaxies like our own Milky Way.
risingstargazer.com 