Kepler-410 is a binary star system. Its primary star, also known as Kepler-410A, is a F-type subgiant star, orbited by the orange dwarf star Kepler-410B on a wide orbit. The companion star was discovered in 2012.[6]
The primary star's surface temperature is 6325±75 K.[8] HD 175289 is similar to the Sun in its concentration of heavy elements, with a metallicity Fe/H index of 0.01±0.10,[8] but is much younger at an age of 1.81±0.27 billion years.[7]
Planetary system
In 2013, one planet, named Kepler-410Ab, was discovered using the transit method.[10] It is not known if the planet is orbiting the primary or secondary star.[10] If orbiting the secondary, the planetary radius must be doubled.[11] Immediately, a second non-transiting planet was suspected due to transit-timing variations, and a 2019 study also found evidence for such a planet, though it has not yet been confirmed or given any designation.[12]
^ abcdeBellinger, E. P.; Hekker, S.; Angelou, G. C.; Stokholm, A.; Basu, S. (2020). "Stellar ages, masses, and radii from asteroseismic modeling are robust to systematic errors in spectroscopy". Astronomy & Astrophysics. 622: A130. arXiv:1812.06979. doi:10.1051/0004-6361/201834461. S2CID119293351.
^ abVan Eylen, V.; Lund, M. N.; Aguirre, V. Silva; Arentoft, T.; Kjeldsen, H.; Albrecht, S.; Chaplin, W. J.; Isaacson, H.; Pedersen, M. G.; Jessen-Hansen, J.; Tingley, B.; Christensen-Dalsgaard, J.; Aerts, C.; Campante, T. L.; Bryson, S. T. (2014). "What Asteroseismology can do for Exoplanets: Kepler-410A b is a Small Neptune around a Bright Star, in an Eccentric Orbit Consistent with Low Obliquity". The Astrophysical Journal. 782 (1): 14. arXiv:1312.4938. Bibcode:2014ApJ...782...14V. doi:10.1088/0004-637X/782/1/14. S2CID15893540.