Y Centauri

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This article is about Y Centauri. For y Centauri, see HD 120987. For γ Centauri, see Gamma Centauri.

Y Centauri or Y Cen (HD 127233, HIP 70969) is a variable star in the constellation of Centaurus.[1] Its position is RA 14h 30m 58.770s by dec 30°S 5' 52.00". The spectral class is M4 to M7.

The variability in the star was discovered by P. F. Fleming in 1895 and it was given a designation H52 in the Harvard Catalogue of Variable Stars.[2]

The type of variable is SRb.

The IRAS designation is 14280-2952. The star contains a 22 GHz water maser emission.[3]


  1. ^ "Y Cen - Frosty Drew Observatory & Sky Theatre". Retrieved 30 July 2013. 
  2. ^ Pickering, Edward Charles (1905). "Second supplement to Catalogue of Variable Stars". Annals of Harvard College Observatory 53: 143–153. Bibcode:1905AnHar..53..143P. 
  3. ^ Lewis, B. M. (October 1997). "A renewed search for water maser emission from Mira Variables". The Astrophysical Journal 114: 1602–1606. arXiv:astro-ph/9706207. Bibcode:1997AJ....114.1602L. doi:10.1086/118591.