HD 112410

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HD 112410
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Musca
Right ascension 11h 57m 31.96016s [1]
Declination −65° 38′ 47.2571″ [1]

HD 112410 is a star in the constellation Musca. Its apparent magnitude is 6.87. It is a yellow giant of spectral type G8III located around 439 light-years distant.[1] With around 1.54 times the mass of our Sun, it is cooling and expanding along the Red Giant Branch,[2] having left the main sequence after exhausting its core supply of hydrogen fuel.

It has a substellar companion calculated to have a mass 9.2 times that of Jupiter and an orbital period of 124.6 days at a distance of approximately 0.57 astronomical units (AU). This is the closest planet orbiting around any ascending Red Giant Branch star, and second closest planet to a giant star after the companion of HIP 13044.[2]

References[edit]

  1. ^ a b c d "HD 112410 -- Red Giant Branch star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 26 December 2013. 
  2. ^ a b Jones, M.I.; Jenkins, J.S.; Rojo, P.; Melo, C. H. F.; Bluhm, Paz (2013). "Study of the Impact of the Post-MS evolution of the Host Star on the Orbits of Close-in Planets. II. A Giant Planet in a Close-in Orbit around the RGB Star HIP 63242" (PDF). Astronomy & Astrophysics 556 (A78): 5. arXiv:1306.3939. Bibcode:2013A&A...556A..78J. doi:10.1051/0004-6361/201321660.