HAT-P-3, is a metal-rich K5 dwarf star located about 441 light-years away in the constellation Ursa Major. At a magnitude of about 11.5 it is not visible to the naked eye but is visible in a small to medium-sized amateur telescope. It is believed to be a relatively young star and has a slightly enhanced level of chromospheric activity.[7][9]
The star HAT-P-3 is named Dombay. The name was selected in the NameExoWorlds campaign by Russia, during the 100th anniversary of the IAU. Dombay is a resort region in the North Caucasus mountains.[10][11]
This star is home to the extrasolar planet HAT-P-3b, later named Teberda, discovered by the HATNet Project using the transit method.[7]
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b / Teberda | 0.609+0.021 −0.022 MJ |
0.03899+0.00062 −0.00065 |
2.8997360±0.0000020 | <0.0100 | 87.07 ± 0.55° | 0.827 ± 0.055 RJ |