Mu Arae b
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| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | Mu Arae | |
| Constellation | Ara | |
| Right ascension | (α) | 17h 44m 08.7s |
| Declination | (δ) | −51° 50′ 03″ |
| Distance | 49.8 ly (15.3 pc) | |
| Spectral type | G3IV–V | |
| Orbital elements | ||
| Semimajor axis | (a) | 1.497 AU |
| Eccentricity | (e) | 0.128 ± 0.017 |
| Orbital period | (P) | 643.25 ± 0.90 d |
| Angular distance | (θ) | 98.039 mas |
| Longitude of periastron |
(ω) | 294 ± 9° |
| Time of periastron | (T0) | 2452365.6 ± 12.6 JD |
| Semi-amplitude | (K) | 37.4 ± 1.6 m/s |
| Physical characteristics | ||
| Mass | (m) | >1.676 MJ |
| Discovery information | ||
| Discovery date | December 12, 2000 | |
| Discoverer(s) | Butler, Marcy | |
| Detection method | Doppler Spectroscopy | |
| Discovery site | California, USA | |
| Discovery status | Published | |
Mu Arae b is an extrasolar planet orbiting the star Mu Arae. At least one and a half times the mass of Jupiter and orbits within the star's habitable zone. This means that if the planet has any large moons orbiting it, they could support life. Its orbital period is 643.25 days. This planet's discovery was announced on December 12, 2002.
[edit] References
- Butler et al. (2001). "Two New Planets from the Anglo-Australian Planet Search". The Astrophysical Journal 555 (1): 410 – 417. doi:.
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