Sagittarius A*

English Etymology From being the unseen gravitational centre associated with the astronomical radio source Sagittarius A, the astrophysical radio source associated with the centre of the Milky Way Galaxy. The asterisk mul * originally symbolized an exciting discovery, by analogy with the symbol's use to denote the excited state of atoms. Proper noun The central supermassive black hole of the Milky Way Galaxy. en Dennis Overbye The Milky Way’s Black Hole Comes to Light The New York Times 2022-05-12 https://www.nytimes.com/2022/05/12/science/black-hole-photo.html 0362-4331 Sagittarius A*, the black hole in the Milky Way galaxy, was a harder target. It is less than one-thousandth the mass and size of the M87 hole and, therefore, evolves a thousand times faster. en Synonyms mul Sgr A* abbreviation See also en Messier 87* en Pōwehi the first directly imaged central supermassive black hole of a galaxy Further reading en Black holes