Kepler-68d

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Kepler-68d
Discovery
Discovery date February 12, 2013
Radial velocity
Orbital characteristics
1.4±0.03 AU[1]
Eccentricity 0.18 ± 0.05
580±50 d
Physical characteristics
Mass ≥0.947 Mj

Kepler-68d is a gas giant with the minimum mass about the same as Jupiter. It is at least a jovian-mass planet orbiting 1.4 astronomical units from its parent star, Kepler-68, well within habitable zone of the star.[2] It was detected by radial velocity.[3]

After planets Kepler-68b and c were detected by observing planetary transits in front of its star, doppler spectroscopy measurements were used to make follow-up observations of the star. Kepler-68d was discovered using that method.

References[edit]

  1. ^ "Kepler Discoveries". kepler.nasa.gov. Retrieved February 26, 2013. 
  2. ^ Gilliland, Ronald L.; et al. (2013). "Kepler-68: Three Planets, One with a Density Between That of Earth and Ice Giants". The Astrophysical Journal. 766. 40. arXiv:1302.2596Freely accessible. Bibcode:2013ApJ...766...40G. doi:10.1088/0004-637X/766/1/40. 
  3. ^ Exoplanet. "Planet Kepler-68 d". Exoplanet.eu. Archived from the original on 16 February 2014. Retrieved 28 February 2013. 

External links[edit]