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PSR B1620-26 b is an exoplanet located approximately 12,400 light-years from Earth in the constellation of Scorpius.It bears the unofficial nicknames "Methuselah" and "the Genesis planet" (named after the Biblical character Methuselah, who, according to the Bible, lived to be the oldest person) due to its extreme age.
PSR B1620−26 is a binary star system located at a distance of 3,800 parsecs (12,400 light-years) in the globular cluster of Messier 4 (M4, NGC 6121) in the constellation of Scorpius. [ 2 ] [ 3 ] [ 4 ] The system is composed of a pulsar ( PSR B1620−26 A ) and a white dwarf star (WD B1620−26, or PSR B1620−26 B ).
The first confirmed circumbinary planet was found orbiting the system PSR B1620-26, which contains a millisecond pulsar and a white dwarf and is located in the globular cluster M4. The existence of the third body was first reported in 1993, [3] and was suggested to be a planet based on 5 years of observational data. [4]
PSR B1257+12 B PSR B1257+12 C: PSR B1257+12: 1992 [41] [1] First known planet orbiting a white dwarf. PSR B1620-26 b: PSR B1620-26: 1993 Orbits a pulsar and a white dwarf. Discovery confirmed in 2003. GD 66 b was announced in 2007, but has not been confirmed. First known extrasolar planet orbiting a main sequence star (Sun-like) 51 Pegasi b: 51 ...
He discovered the first millisecond pulsar, PSR B1937+21, which rotates at 642 Hz (1.558 ms), a rate far beyond what was expected of pulsars before its discovery. [5] [6] Backer was also involved in the discovery of a Jupiter-sized planet around PSR B1620-26, thought to be the oldest known extrasolar planet.
PSR B1620−26 b; 3C 58; Cas X-1; GW170817; Cygnus loop; Spaghetti Nebula; SN 1987A; Jellyfish nebula; See also. Stellar designations and names; References
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WD B1620−26: 2003 PSR B1620-26 b (planet) This planet is a circumbinary planet, which circles both stars in the PSR B1620-26 system [5] [6] First singular white dwarf with a planet WD 1145+017: 2015 WD 1145+017 b: Planet is extremely small and is disintegrating. First white dwarf that is a pulsar: AR Scorpii A: 2016