Mu Arae e

Mu Arae e
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″
Apparent magnitude (mV) 5.15
Distance50.6 ± 0.2 ly
(15.51 ± 0.07 pc)
Spectral type G3IV–V
Mass (m) 1.10 ± 0.01 M☉
Radius (r) 1.36 ± 0.01 R☉
Temperature (T) 5820 ± 40 K
Metallicity [Fe/H] 0.30 ± 0.01
Age 6.34 ± 0.40 Gyr
Orbital elements
Semimajor axis(a) 5.235[1] AU
(783.1 Gm)
Periastron (q) 4.719 AU
(705.9 Gm)
Apastron (Q) 5.750 AU
(860.3 Gm)
Eccentricity (e) 0.0985 ± 0.0627[1]
Orbital period(P) 4205.8 ± 758.9[1] d
(11.51 y)
Argument of
periastron		 (ω) 57.6 ± 43.7[1]°
Time of periastron (T0) 2,450,541 ± 96[1] JD
Semi-amplitude (K) 18.1 ± 1.1[1] m/s
Physical characteristics
Minimum mass(m sin i)1.814[1] MJ
(576 M⊕)
Discovery information
Discovery date June 13, 2002
Discoverer(s) Butler, Marcy
Discovery method Radial velocity
Discovery site California,  USA
Discovery status Published
Other designations
HD 160691 e
Database references
Extrasolar Planets
Encyclopaedia		data
SIMBADdata
Exoplanet Archivedata
Open Exoplanet Cataloguedata

Mu Arae e (also known as HD 160691 e) is one of the four extrasolar planets orbiting the star Mu Arae. Its discovery was announced on June 13, 2002. Mu Arae e is a gas giant at least 1.8 times as massive as Jupiter. The planet orbits at Jupiter-like distance at 5.235 AU.

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Pepe, F.; Correia, A. C. M.; Mayor, M.; Tamuz, O. et al. (2007). "The HARPS search for southern extra-solar planets. VIII. μ Arae, a system with four planets". Astronomy and Astrophysics 462 (2): 769–776. arXiv:astro-ph/0608396. Bibcode:2007A&A...462..769P. doi:10.1051/0004-6361:20066194.

Coordinates: 17h 44m 08.7s, −51° 50′ 03″