| Discovery[1] | |
|---|---|
| Discovered by | Moutouet al. |
| Discovery site | La Silla Observatory |
| Discovery date | October 26, 2008 |
| Doppler spectroscopy (HARPS) | |
| Designations | |
| Finlay | |
| Orbital characteristics[2] | |
| 1.361±0.021 AU | |
| Eccentricity | 0.5455±0.0025 |
| 655.641+0.070 −0.076 d | |
| Inclination | 82.4°+2.8° −2.0° |
| 127.0°+5.1° −3.6° | |
| 2,457,249.6+0.36 −0.32 JD | |
| 112.41°±0.43° | |
| Semi-amplitude | 173.35+0.76 −0.69 m/s |
| Star | BD−17 63 |
| Physical characteristics[2] | |
| Mass | 5.325±0.036 MJ |
BD-17°63 b, formally namedFinlay, is anexoplanet located approximately 112.5light-years away in theconstellation ofCetus, orbiting the 10thmagnitudeK-typemain sequencestarBD−17 63. Thisplanet has aminimum mass of 5.1MJ and orbits at a distance of 1.34astronomical units from the star. The distance ranges from 0.62 AU to 2.06 AU, corresponding to theeccentricity of 0.54. One revolution takes about 656 days.[1]
This planet was discovered on October 26, 2008 by Moutouet al. using theHARPS spectrograph on ESO’s 3.6 meter telescope installed atLa Silla Observatory inAtacama Desert,Chile.
The planet BD-17 63 b is namedFinlay. The name was selected in theNameExoWorlds campaign byCuba, during the 100th anniversary of theIAU.Carlos Juan Finlay (1833–1915) was an epidemiologist recognized as a pioneer in the research of yellow fever.[3][4]
Anastrometric measurement of the planet's inclination and true mass was published in 2022 as part ofGaia DR3,[5][6] with another astrometric orbital solution published in 2023.[2]
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