Planet HD 2638 b
| Name | HD 2638 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2005 | ||
| Mass | 0.48 MJ | ||
| Mass*sin(i) | 0.48 MJ |  |
+ |
| Semi-Major Axis | 0.044 AU | |
|
| Orbital Period | 3.43752 (± 0.008239) day | |
+ |
| Eccentricity | 0.0407 ( -0.0351 +0.0407 ) | |
+ |
| ω | 126.9 (± 78.6) deg | |
+ |
| Tperi | 2453323.282 JD | |
|
| Radius | 1.04 RJ | |
|
| Inclination | — | ||
| Update | 2016-09-03 | ||
| Detection Method | Radial Velocity | ||
| Mass Detection Method | Radial Velocity | ||
| Radius Detection Method | Theoretical | ||
| Primary transit | — | ||
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | — | ||
| Time Vr=0 | 53323.206 (± 0.002) JD | |
|
| Velocity Semiamplitude K | 66.26 (± 2.83) m/s | ||
| Calculated temperature | — | ||
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | — |
Star
HD 2638| Name | HD 2638 | ||
| Distance | 53.71 pc | ||
| Spectral type | G5 | ||
| Apparent magnitude V | 9.44 | ||
| Mass | 0.93 MSun | |
|
| Age | 3.0 Gyr | |
|
| Effective temperature | 5192.0 (± 38.0) K | |
|
| Radius | — | ||
| Metallicity [Fe/H] | 0.16 (± 0.05) | |
|
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 00:29:59.0 | ||
| Dec2000 | -05:45:50 | ||
| Alternate Names | |||
| Planetary system | 1 planet |
Observability Predictor 
Remarks
Wittrock et al. (2016) : HD 2638 has a late-type M dwarf companion (0.483 solar mass and a temperature of 3570K) with a projected separation of 25.6 +/- 1.9 AU.Other web-pages
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