Mu Arae e

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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
Distance 50.6 ± 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
SIMBAD data

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[edit]

  1. ^ a b c d e f g Pepe, F.; Correia, A. C. M.; Mayor, M.; Tamuz, O.; Couetdic, J.; Benz, W.; Bertaux, J.-L.; Bouchy, F.; Laskar, J.; Lovis, C.; Naef, D.; Queloz, D.; Santos, N. C.; Sivan, J.-P.; Sosnowska, D.; Udry, S. (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: Sky map 17h 44m 08.7s, −51° 50′ 03″