 Size comparison of HAT-P-3b (Teberda) with Jupiter | |
| Discovery | |
|---|---|
| Discovered by | HATNet Project |
| Discovery date | 28 July 2007 |
| Transit | |
| Orbital characteristics | |
| 0.03899+0.00062 −0.00065AU | |
| Eccentricity | <0.0100[1] |
| 2.8997360±0.0000020[2]d | |
| Inclination | 87.24 |
| 2454218.7598 ± 0.0029 | |
| Semi-amplitude | 89.1 ± 2.0 |
| Star | HAT-P-3 |
| Physical characteristics | |
| 0.890 ± 0.046[3]RJ | |
| Mass | 0.609+0.021 −0.022[1]MJ |
Meandensity | 1.06 ± 0.17 g/cm3[3] |
| 12.3 m/s2 (40 ft/s2) | |
HAT-P-3b, also namedTeberda, is anextrasolar planet that orbits thestarHAT-P-3 approximately 450light-years away in theconstellation ofUrsa Major. It was discovered by theHATNet Project via thetransit method and confirmed withDoppler spectroscopy, so both its mass and radius are known quite precisely. Based on these figures it is predicted that the planet has about 75Earth masses' worth ofheavy elements in its core, making it similar to the planetHD 149026 b.[3]
The planet HAT-P-3b is namedTeberda. The name was selected in theNameExoWorlds campaign byRussia, during the 100th anniversary of theIAU.Teberda is a mountain river inDombay region (name of HAT-P-3).[4][5]
In 2013, this planet was photometrically observed bySpitzer Space Telescope which characterized its near-zero eccentricity and low albedo.[6]
In 2007 the HATNet Project reported the discovery of HAT-P-3b transiting the metal-rich early K dwarf star HAT-P-3 with an orbital period of 2.9 days. It was found with the 11 cm aperture HAT-5 telescope, located at theFred Lawrence Whipple Observatory onMount Hopkins inArizona. Follow upradial velocity observations to confirm the planet were made with the 1.5 m Tillinghast reflector in order to rule out the possibility that the observed decrease in brightness was caused by aneclipsing binary. Final confirmation was made at theW. M. Keck Observatory using the HIRES spectrograph to measure the mass and orbital parameters of the planet.[3]
Media related toHAT-P-3b at Wikimedia Commons
