Kepler-23

Kepler-23 is a G-type main-sequence star about away in the northern constellation of Cygnus, the swan. With an apparent visual magnitude of 13.5, it is too faint to be seen with the naked eye. This star is similar in mass and temperature to the Sun, but is larger and more luminous. Kepler-23 is orbited by three known exoplanets.

Wikidata facts

Distance from Earth: 856.311
Diameter: 2160000
Radius: 1.55
Mass: 1.11
Image: Kepler-23.jpg

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Commons category: Kepler-23
catalog code: KIC 11512246
effective temperature: 5828
parallax: 1.1395
radial velocity: -32.89
apparent magnitude: 14.19
spectral class: G2
luminosity: 2.37639
absolute magnitude: 3.92
metallicity: 0.14
stellar rotational velocity: 1.5
surface gravity: 10000
right ascension component of proper motion: 2.275
declination component of proper motion: 3.879
right ascension: 294.21889805373
declination: 49.47923683339

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Planetary system
References

==Planetary system== Three transiting exoplanets orbit this star, discovered using the Kepler space telescope. Two planets, Kepler-23b and Kepler-23c, were discovered in 2011 and were confirmed in 2012. A third planet, Kepler-23d, was confirmed in 2014 as part of a study validating hundreds of Kepler candidates. All three planets are between Earth and Neptune in size (sub-Neptunes), and their masses have been measured via transit-timing variations, showing that they have lower densities than Earth.