Discovery [1] | |
---|---|
Discovered by | Harakawa et al. |
Discovery site |
Subaru Telescope and Keck Observatory |
Discovery date | 2010 |
Doppler spectroscopy | |
Orbital characteristics [2] | |
1.66±0.11 AU | |
Eccentricity | 0.059±0.026 |
686.8±1.4 d | |
2453849±27 JD | |
296±14 º | |
Semi-amplitude | 196.3±3.8 m/s |
Star | HD 38801 |
Physical characteristics [2] | |
Mass | ≥10.13±23 MJ |
HD 38801 b is an extrasolar gas giant planet located in the constellation of Orion [3] whose discovery was announced in 2009 and was made using the radial velocity method. [4] The object, with a mass roughly 12 times that of Jupiter, [4] is located 324 light years (99.4 parsecs) from Earth [5] [6] orbiting 1.65 astronomical units from its G-type star, HD 38801. [4] [7] HD 38801 b, besides being the only planet in its system [5] also lies within the inner habitable zone [6] and takes around 1.9 years, or 693.5 days to complete a full orbit. [4]
HD 38801 b is characterized by its uniquely low eccentricity values, or having a near circular orbit. As a super massive planet with an orbital period of hundreds of days, this occurrence is quite uncommon. [1]
Discovery [1] | |
---|---|
Discovered by | Harakawa et al. |
Discovery site |
Subaru Telescope and Keck Observatory |
Discovery date | 2010 |
Doppler spectroscopy | |
Orbital characteristics [2] | |
1.66±0.11 AU | |
Eccentricity | 0.059±0.026 |
686.8±1.4 d | |
2453849±27 JD | |
296±14 º | |
Semi-amplitude | 196.3±3.8 m/s |
Star | HD 38801 |
Physical characteristics [2] | |
Mass | ≥10.13±23 MJ |
HD 38801 b is an extrasolar gas giant planet located in the constellation of Orion [3] whose discovery was announced in 2009 and was made using the radial velocity method. [4] The object, with a mass roughly 12 times that of Jupiter, [4] is located 324 light years (99.4 parsecs) from Earth [5] [6] orbiting 1.65 astronomical units from its G-type star, HD 38801. [4] [7] HD 38801 b, besides being the only planet in its system [5] also lies within the inner habitable zone [6] and takes around 1.9 years, or 693.5 days to complete a full orbit. [4]
HD 38801 b is characterized by its uniquely low eccentricity values, or having a near circular orbit. As a super massive planet with an orbital period of hundreds of days, this occurrence is quite uncommon. [1]