HD 75898
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Lynx |
| Right ascension | 08h 53m 50.8051s |
| Declination | +33° 03′ 24.522″ |
| Apparent magnitude (V) | 8.04 |
| Distance | 262.82 ly (80.58 pc) |
| Spectral type | G0IV |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 75898 is an 8th magnitude star approximately 263 light years away in the constellation Lynx. It is a yellow subgiant, although it is only 3.8 billion years old. The star is 28% more massive, 60% larger, and 3 times as luminous than our local star. It is a metal-rich star, meaning it has 186% the solar abundance of iron.
Planetary system[edit]
On January 11, 2007, the California and Carnegie Planet Search team found one planet orbiting HD 75898.[1] It wasn’t published until May 27, 2007. The centre of mass of the system is accelerating, indicating there is a third, more distant, component at least the size of Jupiter. If it has 1 to 13 times the mass of Jupiter it is 30-65 au distant with an orbital period of 4.5 to 460 years. If it is a brown dwarf, it has 13 to 83 times the mass of Jupiter and would be 75-170 au distant with an orbital period of 418 to 1900 years.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >2.51 MJ | 1.19 | 418.2 ± 5.7 | 0.10 ± 0.05 | — | — |
See also[edit]
References[edit]
- ^ a b Robinson, Sarah E.; et al. (2007). "Two Jovian-Mass Planets in Earthlike Orbits". The Astrophysical Journal. 670 (2): 1391–1400. arXiv:0708.0832
. Bibcode:2007ApJ...670.1391R. doi:10.1086/522106.
External links[edit]
- "HD 75898". The Extrasolar Planets Encyclopaedia.
Coordinates: 
08h 53m 50.8051s, +33° 03′ 24.522″
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