2-577: The Sagittarius Dwarf Irregular Galaxy ( SagDIG ) is a dwarf galaxy in the constellation of Sagittarius . It lies about 3.4 million light-years away. It was discovered by Cesarsky et al. on a photographic plate taken for the ESO ;(B) Atlas on 13 June 1977 using the ESO 1 meter Schmidt telescope. The SagDIG is thought to be the member of the Local Group most remote from
4-532: The Local Group's barycenter . It is only slightly outside the zero-velocity surface of the Local Group. SagDIG is a much more luminous galaxy than the Aquarius Dwarf and it has been through a prolonged period of star formation. This has resulted in it containing a rich intermediate-age population of stars. Twenty-seven candidate carbon stars have been identified inside SagDIG. Analysis shows that
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