HD 93083
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| Observation data Epoch 2000 |
|
|---|---|
| Constellation (pronunciation) |
Antlia |
| Right ascension | 10h 44m 20.91s |
| Declination | -33° 34' 37.28" |
| Apparent magnitude (V) | 8.33 |
| Distance | 94.22 ly (28.90 pc) |
| Spectral type | K2V |
| Other designations | |
|
GJ 1137, CD-32°7598,
HIP 52521 |
|
HD 93083 is an 8th magnitude star in the constellation of Antlia. It is an orange dwarf (spectral class K2 V), somewhat cooler and less luminous than our Sun.
In 2005 the discovery of a planet orbiting the star was announced.
Contents |
[edit] Planet
[edit] HD 93083 b
| Orbital elements | ||
|---|---|---|
| Semi-major axis a: | 0.477 AU | |
| Eccentricity e: | 0.14 ± 0.03 | |
| Orbital period P: | 143.58 ± 0.60 d | |
| Inclination i: | ?° | |
| Angular distance θ: | 17 mas | |
| Longitude of periastron ω: |
333.5 ± 7.9° | |
| Time of periastron τ: | 2,453,181.7 ± 3.0 JD |
|
| Semi-amplitude K: | 18.30 ± 0.5 m/s | |
| Physical characteristics | ||
| Mass: | >0.37 MJ | |
| Radius: | ? RJ | |
| Density: | ? kg/m³ | |
| Gravity: | ? g | |
| Temperature: | ? K | |
| Discovery | ||
| Discovery date: | 2005 | |
| Discovery site: | ||
| Detection method(s): | ||
| Discoverer(s): | Lovis, Mayor, Pepe et al. |
|
| Other catalogue | ||
HD 93083 b is an extrasolar planet orbiting the star HD 93083. It is probably much less massive than Jupiter, although only the minimum mass is known. The planet's mean distance from the star is about half that of Earth, and the orbit is slightly eccentric.
[edit] References
- Lovis et al. (2005). "The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117" (abstract). Astronomy and Astrophysics 437: 1121-1126. doi:.
[edit] External links
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