Pollux (star)

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Pollux is an orange giant star. It is the brightest star in the Gemini constellation. It's diameter is over 11,000,000 kilometres (6,800,000 miles).[1] Once a type A star, Pollux has used all the hydrogen in its core and expanded to become a giant.[2]

References[change | change source]

  1. Döllinger, M. P.; Paulson, D. B.; Esposito, M.; Hartmann, M.; Yang, S.; Walker, G. a. H.; Saar, S. H.; Guenther, E. W. et al. (1 October 2006). "Confirmation of the planet hypothesis for the long-period radial velocity variations of β Geminorum". Astronomy & Astrophysics 457 (1): 335–341. doi:10.1051/0004-6361:20065445. https://www.aanda.org/articles/aa/abs/2006/37/aa5445-06/aa5445-06.html. 
  2. Power, J.; Folsom, C. P.; Eck, S. Van; Cabanac, R.; Alecian, E.; Donati, J.-F.; Petit, P.; Roudier, T. et al. (1 September 2009). "Discovery of a weak magnetic field in the photosphere of the single giant Pollux". Astronomy & Astrophysics 504 (1): 231–237. doi:10.1051/0004-6361/200912050. https://www.aanda.org/articles/aa/abs/2009/34/aa12050-09/aa12050-09.html.