HD 70573 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 70573 | |
| Constellation | Hydra | |
| Right ascension | (α) | 8h 22m 49.9514s |
| Declination | (δ) | +01° 51′ 33.552″ |
| Distance | 149 ly (45.7 pc) | |
| Spectral type | G1.2V | |
| Orbital elements | ||
| Semi-major axis | (a) | 1.76 ± 0.05 AU |
| Periastron | (q) | 1.02 AU |
| Apastron | (Q) | 2.50 AU |
| Eccentricity | (e) | 0.4 ± 0.1 |
| Orbital period | (P) | 851.8 ± 11.6 d (2.332 y) |
| Argument of periastron |
(ω) | 269.6 ± 14.3° |
| Time of periastron | (T0) | 2,452,106.54 ± 25.72 JD |
| Semi-amplitude | (K) | 149 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 6.1 ± 0.4 MJ |
| Discovery information | ||
| Discovery date | March 19, 2007 | |
| Discoverer(s) | Setiawan et al. | |
| Discovery method | radial velocity | |
| Discovery status | Published | |
HD 70573 b is a superjovian planet orbiting the youngest RV host star HD 70573 approximately 149 light-years away in the constellation of Hydra. The discovery of the planet is important because it enables the study of debris disks around young stars in relation to presence of planets.
References
- Setiawan; Weise, P.; Henning, Th.; Launhardt, R.; Müller, A.; Rodmann, J. (2007). "Evidence for a Planetary Companion around a Nearby Young Star" (abstract). The Astrophysical Journal Letters. 660 (2): L145–L148. arXiv:0704.0441. Bibcode:2007ApJ...660L.145S. doi:10.1086/518213. web preprint
External links
- "Notes for planet HD 70573 b". The Extrasolar Planets Encyclopaedia.
- "HD 70573". Exoplanets.
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