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John Michell (/ ˈ m ɪ tʃ əl /; 25 December 1724 – 21 April 1793) was an English natural philosopher and clergyman who provided pioneering insights into a wide range of scientific fields including astronomy, geology, optics, and gravitation.
The Black Hole of Calcutta: A Reconstruction. London, Suttonn Publishing Ltd., U.K. Edition, 2003. 272 p. ISBN 978-0750933896. Partha Chatterjee. The Black Hole of Empire: History of a Global Practice of Power. Princeton, N.J.: Princeton University Press, 2012. 425 pp. ISBN 9780691152004. Explores the incident itself and the history of using it ...
OJ 287 core black holes — a BL Lac object with a candidate binary supermassive black hole core system [23] PG 1302-102 – the first binary-cored quasar — a pair of supermassive black holes at the core of this quasar [24] [25] SDSS J120136.02+300305.5 core black holes — a pair of supermassive black holes at the centre of this galaxy [26]
The following is a list of astronomers, astrophysicists and other notable people who have made contributions to the field of astronomy.They may have won major prizes or awards, developed or invented widely used techniques or technologies within astronomy, or are directors of major observatories or heads of space-based telescope projects.
Supermassive black holes, regions of space where the pull of gravity is so intense that even light doesn't have enough energy to escape, are often considered terrors of the known universe.
The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.
KBC Void is an immense empty region of space, named after Ryan Keenan, Amy Barger, and Lennox Cowie. Mayall's Object is the result of a galaxy collision in Ursa Major, named after Nicholas Mayall. 9Spitch is a gravitationally lensed system of two galaxies in Cetus. It is named after Zbigniew "Zbish" Chetnik.
A black hole with the mass of a car would have a diameter of about 10 −24 m and take a nanosecond to evaporate, during which time it would briefly have a luminosity of more than 200 times that of the Sun. Lower-mass black holes are expected to evaporate even faster; for example, a black hole of mass 1 TeV/c 2 would take less than 10 −88 ...