This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M☉), or the mass of the Sun (approx. 2×1030 kilograms). == Introduction == A supermassive black hole (SMBH) is the largest type of black hole, on the order of hundreds of thousands to billions of solar masses (M☉), and is theorized to exist in the center of almost all massive galaxies. Unambiguous dynamical evidence for SMBHs exists only in a handful of galaxies; these include the Milky Way, the Local Group galaxies M31 and M32, and a few galaxies beyond the Local...

TON 618 is a very distant and extremely luminous quasar—technically, a hyperluminous, broad-absorption line, radio-loud quasar—located near the North Galactic Pole in the constellation Canes Venatici. It contains one of the most massive known black holes, weighing 66 billion times the mass of the Sun. == Observational history == Because quasars were not recognized until 1963, the nature of this object was unknown when it was first noted in a 1957 survey of faint blue stars (mainly white dwarfs) that lie away from the plane of the Milky Way. On photographic plates taken with the 0.7m Schmi...

Wolfgang Amadeus Mozart's Horn Concerto No. 1 in D major, K. (412+514)/386b was written in 1791. The work is in two movements. Unusually, each movement received a distinct number in the first edition of the Köchel catalogue: The first movement of this concerto was featured in film The Truman Show (1998). Allegro 4/4 (K. 412) Rondo (Allegro) 6/8 (K. 514)This is one of two horn concertos of Mozart to include bassoons (the other is K. 447), but in this one he "treats them indifferently in the first movement." It is the only one of Mozart's horn concertos to be in D major (the rest are in E-flat major...

Die Focke-Wulf Fw 190, genannt „Würger“, war ein deutsches Jagdflugzeug des Zweiten Weltkriegs. Die bei Focke-Wulf in Bremen unter der Leitung von Chefkonstrukteur Kurt Tank entwickelte Maschine wurde ab 1941 von der Luftwaffe als zweiter Standardjäger neben der Messerschmitt Bf 109 verwendet. Bis zum Kriegsende wurden rund 19.500 Fw 190 in verschiedenen Versionen produziert. Neben der Verwendung als Jagdflugzeug wurde der Typ als Aufklärer, Jagdbomber, Nachtjäger und Erdkampfflugzeug eingesetzt. Die meisten Fw 190 wurden von einem luftgekühlten 14-Zylinder-Doppelsternmotor vom Typ BMW 801 angetrieben…

Fokker was a Dutch aircraft manufacturer named after its founder, Anthony Fokker. The company operated under several different names, starting out in 1912 in Schwerin, Germany, moving to the Netherlands in 1919. During its most successful period in the 1920s and 1930s, it dominated the civil aviation market. Fokker went into bankruptcy in 1996, and its operations were sold to competitors. == History == === Fokker in Germany === At age 20, while studying in Germany, Anthony Fokker built his initial aircraft, the Spin (Spider)—the first Dutch-built plane to fly in his home country. Taking advantage...

Star Trek is a 2009 American science fiction film directed by J. J. Abrams and written by Roberto Orci and Alex Kurtzman. It is the eleventh film in the Star Trek film franchise, and is also a reboot that features the main characters of the original Star Trek television series portrayed by a new cast, as the first in the rebooted film series. The film follows James T. Kirk (Chris Pine) and Spock (Zachary Quinto) aboard the USS Enterprise as they combat Nero (Eric Bana), a Romulan from their future who threatens the United Federation of Planets. The story takes place in an alternate reality because...