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Observation data
Epoch J2000      Equinox J2000
Constellation Lyra
Right ascension 19h 14m 45.2910s[1]
Declination +41° 09′ 04.089″[1]
Apparent magnitude (V) 11.018
Proper motion (μ) RA: 0.7[2] mas/yr
Dec.: -14.6[2] mas/yr
Mass 1.25 M
Radius 1.41 R
Temperature 6211 K
Metallicity [Fe/H] +0.17 dex
Other designations
KOI-85, KIC 5866724, TYC 3125-976-1, GSC 03125-00976, 2MASS J19144528+4109042
Database references
KIC data

Kepler-65 is a star slightly more massive than the Sun and has at least three planets.

Planetary system[edit]

Three planets were announced in 2013. All three planets orbit very close to their star. Follow-up radial velocity measurements provided data too noisy to constrain the mass of planets.[3] Follow-up transit-timing variation analysis helped to measure the mass of Kepler-65d which revealed that it has significantly lower density than Earth.[4]

The Kepler-65 planetary system
(in order from star)
Mass Semimajor axis
Orbital period
Eccentricity Inclination Radius
b 0.035 2.154910 79.07° 1.42 R
c <20 M 0.068 5.859944 83.65° 2.58 R
d M 0.084 8.131146 84.8° 1.52 R

External links[edit]


  1. ^ a b Hog, E. (1998). "The Tycho Reference Catalogue". Astronomy and Astrophysics. 335. Bibcode:1998A&A...335L..65H. 
  2. ^ a b "Kepler-65". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 January 2017. 
  3. ^ Asteroseismic determination of obliquities of the exoplanet systems Kepler-50 and Kepler-65: W. J. Chaplin, R. Sanchis-Ojeda, T. L. Campante, R. Handberg, D. Stello, J. N. Winn, S. Basu, J. Christensen-Dalsgaard, G. R. Davies, T. S. Metcalfe, L. A. Buchhave, D. A. Fischer, T. R. Bedding, W. D. Cochran, Y. Elsworth, R. L. Gilliland, S. Hekker, D. Huber, H. Isaacson, C. Karoff, S. D. Kawaler, H. Kjeldsen, D. W. Latham, M. N. Lund, M. Lundkvist, G. W. Marcy, A. Miglio, T. Barclay, J. J. Lissauer
  4. ^