Mu Arae b
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Extrasolar planet | Lists of extrasolar planets | |
---|---|---|
Parent star | ||
Star | Mu Arae | |
Constellation | Ara | |
Right ascension | (α) | 17h 44m 08.7s |
Declination | (δ) | −51° 50′ 03″ |
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 |
Inclination | (i) | ?° |
Longitude of periastron |
(ω) | 294 ± 9° |
Time of periastron | (τ) | 2452365.6 ± 12.6 JD |
Physical characteristics | ||
Mass | (m) | >1.676 MJ |
Radius | (r) | ? RJ |
Density | (ρ) | ? kg/m3 |
Temperature | (T) | ~240 K |
Discovery information | ||
Discovery date | 2000 | |
Discoverer(s) | Butler, Marcy | |
Detection method | Doppler Spectroscopy | |
Discovery status | Confirmed |
Mu Arae b is 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 sorport life. Its orbital period is 643.25 days. This planet's discovery was announced December 12, 2002.