- The Virgo Supercluster (Virgo SC) or the Local Supercluster (LSC or LS) is a mass concentration of galaxies containing the Virgo Cluster and Local Group, which itself contains the Milky Way and Andromeda galaxies, as well as others. At least 100 galaxy groups and clusters are located within its diameter of 33 megaparsecs (110 million light-years). The Virgo SC is one of about 10 million superclusters in the observable universe and is in the Pisces–Cetus Supercluster Complex, a galaxy filament.
- Tania Australis (stars.astro.illinois.edu)
TANIA AUSTRALIS (Mu Ursae Majoris). Our Ursa Major, the Greater Bear, contains remnants of ancient Arabic constellations, the best-known example the star Alkaid, which refers to the leader of the daughters of a funeral bier. Southwest of the Dipper’s bowl lie three obvious pairs of stars that represent the bear’s paws, but to the Arabs were the tracks of leaping gazelles. The middle pair is the “second leap,” from which comes the name “Tania” (for “second”).