Planet HD 221420 b
| Name | HD 221420 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2019 | ||
| Mass | 9.7 (± 1.1) MJ | ||
| Mass*sin(i) | 9.7 (± 1.1) MJ |  |
|
| Semi-Major Axis | — | |
|
| Orbital Period | 22482.0 (± 4200.0) day | |
|
| Eccentricity | 0.42 (± 0.07) | |
|
| ω | 164.4 ( -6.3 +6.9 ) deg | |
|
| Tperi | — | ||
| Radius | — | ||
| Inclination | — | ||
| Update | 2019-05-02 | ||
| Detection Method | Radial Velocity | ||
| Mass Detection Method | Radial Velocity | ||
| Radius Detection Method | — | ||
| Primary transit | — | ||
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | — | ||
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | 54.7 ( -3.6 +4.2 ) m/s | |
|
| Calculated temperature | — | ||
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | — |
Star
HD 221420| Name | HD 221420 | ||
| Distance | 31.8 pc | |
|
| Spectral type | G2IV-V | ||
| Apparent magnitude V | 5.8 | ||
| Mass | 1.67 (± 0.11) MSun | |
|
| Age | — | ||
| Effective temperature | 5830.0 K | |
|
| Radius | — | ||
| Metallicity [Fe/H] | 0.29 | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 23:33:20.0 | ||
| Dec2000 | -77:23:07 | ||
| Alternate Names | |||
| Planetary system | 1 planet |
Related publications
Detection of Planetary and Stellar Companions to Neighboring Stars via a Combination of Radial Velocity and Direct Imaging Techniques
2019
KANE S., DALBA P., LI Zh., HORCH E., HIRSCH L. et al.
Astron. J., 157, 252
paper arxiv
