• Constellation: Scorpius
  • Right Ascension: 16h 23m 35.22s
  • Declination: –26° 31′ 32.7″
  • Distance: 7,200 ly

M4 is one of the closer globular clusters to Earth at only 7,200 light years away. Located in the constellation of Scorpius, not far from the red super giant star Antares. It is distinguished by an optical bar of stars running through the central part of the core. A relative small globular as globular clusters go with only ten's of thousands stars, it may have been more massive in its past as it's orbit takes it through the Milky Way disk, where it loses stars due to tidal shock.


  • Telescope: Explore Scientific 127 Refractor
  • Camera: Atik 314l+