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HandWiki. PSR B1620-26 B. Encyclopedia. Available online: https://encyclopedia.pub/entry/36753 (accessed on 22 September 2026).
HandWiki. PSR B1620-26 B. Encyclopedia. Available at: https://encyclopedia.pub/entry/36753. Accessed September 22, 2026.
HandWiki. "PSR B1620-26 B" Encyclopedia, https://encyclopedia.pub/entry/36753 (accessed September 22, 2026).
HandWiki. (2022, November 28). PSR B1620-26 B. In Encyclopedia. https://encyclopedia.pub/entry/36753
HandWiki. "PSR B1620-26 B." Encyclopedia. Web. 28 November, 2022.
PSR B1620-26 B
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The content is sourced from: https://handwiki.org/wiki/Astronomy:PSR_B1620-26_b

PSR B1620-26 b is an extrasolar planet located approximately 12,400 light-years away from Earth in the constellation of Scorpius. It bears the unofficial nicknames "Methuselah" and "the Genesis planet" due to its extreme age and a few popular sources refer to this object as "PSR B1620-26 c" (see below for discussion). The planet is in a circumbinary orbit around the two stars of PSR B1620-26 (which are a pulsar (PSR B1620-26 A) and a white dwarf (WD B1620-26)) and is the first circumbinary planet ever confirmed. It is also the first planet found in a globular cluster. The planet is one of the oldest known extrasolar planets, believed to be about 12.7 billion years old.

extrasolar planet pulsar globular

References

  1. "Notes for star PSR B1620-26". The Extrasolar Planets Encyclopaedia. http://exoplanet.eu/star.php?st=PSR+B1620-26. Retrieved 2006-05-07. 
  2. Fraser Cain (16 September 2008). "How Old is the Sun?". Universe Today. http://www.universetoday.com/18237/how-old-is-the-sun/. Retrieved 19 February 2011. 
  3. Sigurdsson, S.; Richer, H.B.; Hansen, B.M.; Stairs I.H.; Thorsett, S.E. (2003). "A Young White Dwarf Companion to Pulsar B1620-26: Evidence for Early Planet Formation". Science 301 (5630): 193–196. doi:10.1126/science.1086326. PMID 12855802. Bibcode: 2003Sci...301..193S.  https://dx.doi.org/10.1126%2Fscience.1086326
  4. Ford; Joshi, Kriten J.; Rasio, Frederic A.; Zbarsky, Boris (2000). "Theoretical Implications of the PSR B1620-26 Triple System and its Planet". The Astrophysical Journal 528 (1): 336–350. doi:10.1086/308167. Bibcode: 2000ApJ...528..336F. http://www.iop.org/EJ/article/0004-637X/528/1/336/40658.html.  (preprint)
  5. "Oldest Known Planet Identified". HubbleSite. http://hubblesite.org/newscenter/newsdesk/archive/releases/2003/19/. Retrieved 2006-05-07. 
  6. "NAME PSR B1620-26 b". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NAME+PSR+B1620-26+b. 
  7. John Whatmough (2003). ""Methuselah" - PSR B1620-26 c". Extrasolar Visions. Archived from the original on 2009-05-05. https://web.archive.org/web/20090505060512/http://www.extrasolar.net/planettour.asp?StarCatId=pulsar&PlanetId=30. Retrieved 2008-09-01. 
  8. Gary Denke (2003). "Planet 'Methuselah' Discovered!". Archived from the original on 2011-07-16. https://web.archive.org/web/20110716015941/http://www.scienceagogo.com/message_board5/messages/399.shtml. Retrieved 2008-09-01. 
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