HD 43197 b
Coordinates: 
06h 13m 35.6615s, −29° 53′ 50.169″
06h 13m 35.6615s, −29° 53′ 50.169″| Orbital characteristics[1] | |
|---|---|
| 0.882+0.035 −0.039 AU | |
| Eccentricity | 0.742+0.017 −0.018 |
| 308.9+2.3 −2.8 d | |
| 2452535.102+17.503 −14.898 | |
| 268.525°+3.824° −4.523° | |
| Semi-amplitude | 25.439+1.472 −1.121 m/s |
| Star | HD 43197 |
| Physical characteristics[1] | |
| Mass | ≥0.553+0.052 −0.048 |
HD 43197 b is an
HARPS
on October 19, 2009, together with 29 other planets.
In 2022, a second super-Jovian planet was discovered orbiting HD 43197 using a combination of radial velocity and astrometry. Assuming HD 43197 b shares the outer planet's orbital inclination, its true mass would be about 4 MJ.[1]
The planet HD 43197 b is named Equiano. The name was selected in the NameExoWorlds campaign by Nigeria, during the 100th anniversary of the IAU. Olaudah Equiano was a writer and abolitionist from Ihiala, Nigeria who fought injustice and for the elimination of the slave trade.[3][4]
References
- ^ S2CID 251864022.
- S2CID 118845989.
- ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
- ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
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