HD 20003

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HD 20003
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Hydrus
Right ascension 03h 07m 37.91875s [1]
Declination −72° 19′ 18.8010″ [1]

HD 20003 is a star in the constellation Hydrus. Its apparent magnitude is 8.37. It is a yellow main sequence star of spectral type G8V a little cooler and smaller than our sun around 143 light years away.[1] It has two planets that are around 12 and 13.5 times as massive as the earth that have periods of just under 12 and 34 days respectively. These were detected by the HARPS survey in 2011.[2]

References[edit]

  1. ^ a b c d SIMBAD, [1] (accessed 12 September 2013)
  2. ^ Mayor, M. et al. (2011). "The HARPS Search for Southern Extra-solar Planets XXXIV. Occurrence, Mass Distribution and Orbital Properties of Super-Earths and Neptune-mass Planets". arXiv:1109.2497 [astro-ph.EP].