CE Gruis

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CE Gruis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Grus
Right ascension 21h 37m 56.38s [1]
Declination −43° 42′ 13.1″ [1]

CE Gruis is a (also known as Grus V-1) is a faint (magnitude 18–21) binary star system in the constellation Grus. It is composed of a white dwarf and donor star, in this case the two are so close and fused into orbit facing one another. Known as polars, material from the donor star does not form an accretion disc around the white dwarf, but rather streams directly onto it.[2]

References[edit]

  1. ^ a b "CE Gruis -- CV of AM Her type (polar)". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 10 February 2014. 
  2. ^ Ramsay, Gavin; Cropper, Mark (2002). "First X-ray Observations of the Polar CE Gru". Monthly Notice of the Royal Astronomical Society 335 (4): 918–22. arXiv:astro-ph/0205102. Bibcode:2002MNRAS.335..918R. doi:10.1046/j.1365-8711.2002.05666.x.