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The Galactic Center is the barycenter of the Milky Way and a corresponding point on the rotational axis of the galaxy. [1][2] Its central massive object is a supermassive black hole of about 4 million solar masses, which is called Sagittarius A*, [3][4][5] a compact radio source which is almost exactly at the galactic rotational center ...
C-BASS South Meerkat National Park, South Africa 4.5–5.5 GHz 7.6-metre (24.9 foot) dish with polarimeter back end [2] HartRAO 26m Hartebeesthoek Radio Astronomy Observatory, Johannesburg, South Africa 1.66–23 GHz 26 m dish. [3] HartRAO XDM Hartebeesthoek Radio Astronomy Observatory, Johannesburg, South Africa 2.3–8.65 GHz
Group of at least 80 galaxies of which the Milky Way is a part. Dominated by Andromeda (the largest), the Milky Way and Triangulum; the remainder are dwarf galaxies. [39] Local Sheet: 7 Mpc 2.16×10 20: 20.33: Group of galaxies including the Local Group moving at the same relative velocity towards the Virgo Cluster and away from the Local Void ...
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Related media on Commons. [edit on Wikidata] The South African Astronomical Observatory (SAAO) is the national centre for optical and infrared astronomy in South Africa. It was established in 1972. The observatory is run by the National Research Foundation of South Africa. The facility's function is to conduct research in astronomy and ...
The Origin of the Milky Way by Jacopo Tintoretto. The myth of the milk of Hera (Ancient Greek: Ἥρας γάλα, romanized: Hḗras gala) is an ancient Greek myth and explanation of the origin of the Milky Way within the context of creation myths. The standard telling goes that the mythical hero Heracles, as an infant, breastfed from an ...
Abbreviations: GNP/GSP: Galactic North and South Poles. The Milky Way is approximately 890 billion to 1.54 trillion times the mass of the Sun in total (8.9 × 10 11 to 1.54 × 10 12 solar masses), [7] [8] [9] although stars and planets make up only a small part of this. Estimates of the mass of the Milky Way vary, depending upon the method and ...
Southern Supercluster, including Fornax Cluster (S373), Dorado and Eridanus clouds. [13] The most massive galaxy clusters of the Laniakea Supercluster are Virgo, Hydra, Centaurus, Abell 3565, Abell 3574, Abell 3521, Fornax, Eridanus, and Norma. The entire supercluster consists of approximately 300 to 500 known galaxy clusters and groups.