The hub of our Galaxy is rich in globulars, a great example being M4 (RA 16h 23.6m, dec. –26° 31m; pictured). Located 1.3° west of mag. +1.1 Antares (Alpha (a) Scorpii), this mag. +5.6 cluster has a bright central core surrounded by an impressive halo around 12 arcminutes across. It shows clumps of stars with numerous doubles and chains in a spectacular star field.