Mu Arae d

Mu Arae d
Discovery
Discovered by	et al. ; Mayor,
Discovery site	Chile South America
Discovery date	August 5, 2006
Detection method	Doppler Spectroscopy
Orbital characteristics
Apastron	0.9823 AU (146,950,000 km)
Periastron	0.8597 AU (128,610,000 km)
Semi-major axis	0.9210 AU (137,780,000 km)
Eccentricity	0.0666 ± 0.0122
Orbital period	310.55 ± 0.83 d; 0.8502 y
Time of periastron	2452708.7 ± 8.3
Argument of periastron	189.6 ± 9.4
Semi-amplitude	14.91 ± 0.59
Star	Mu Arae

Mu Arae d, also known as HD 160691 d, formally named Rocinante /ˌrɒsəˈnæntiː/, is an extrasolar planet orbiting the star Mu Arae of the constellation Ara.

Characteristics[]

The planet has a mass about half that of Jupiter and orbits at a distance of 0.921 AU from the star with a period of 310.55 days. The planet may be located at a distance close enough to the star to receive a comparable amount of ultraviolet radiation as the Earth does from the Sun. However, it is too close to the star to be able to support liquid water at its surface.^[2] Furthermore, given its mass, the planet is likely to be a gas giant with no solid surface.

Name[]

In July 2014 the International Astronomical Union launched NameExoWorlds, a process for giving proper names to certain exoplanets and their host stars.^[3] The process involved public nomination and voting for the new names.^[4] In December 2015, the IAU announced the winning name was Rocinante for this planet.^[5] The winning name was submitted by the Planetario de Pamplona, Spain. Rocinante was the horse of the lead character of the novel El Ingenioso Hidalgo Don Quixote de la Mancha.^[6]

References[]

^ ^a ^b ^c ^d ^e ^f 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.
^ Buccino, A.; et al. (2006). "Ultraviolet Radiation Constraints around the Circumstellar Habitable Zones". Icarus. 183 (2): 491–503. arXiv:astro-ph/0512291. Bibcode:2006Icar..183..491B. doi:10.1016/j.icarus.2006.03.007.
^ NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
^ NameExoWorlds The Process
^ Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
^ NameExoWorlds The Approved Names

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

This extrasolar-planet-related article is a stub. You can help Wikipedia by .

[pepe07-1] ^ ^a ^b ^c ^d ^e ^f 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.

[buccino-2] Buccino, A.; et al. (2006). "Ultraviolet Radiation Constraints around the Circumstellar Habitable Zones". Icarus. 183 (2): 491–503. arXiv:astro-ph/0512291. Bibcode:2006Icar..183..491B. doi:10.1016/j.icarus.2006.03.007.

[3] NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014

[4] NameExoWorlds The Process

[5] Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.

[6] NameExoWorlds The Approved Names

[1]

[2]

[3]

[4]

[5]

[6]

v t The Mu Arae System
Stars	Mu Arae
Planets	Mu Arae c Mu Arae d Mu Arae b Mu Arae e

Discovery
Discovered by	et al. Mayor,
Discovery site	Chile South America
Discovery date	August 5, 2006
Detection method	Doppler Spectroscopy
Orbital characteristics
Apastron	0.9823 AU (146,950,000 km)
Periastron	0.8597 AU (128,610,000 km)
Semi-major axis	0.9210 AU (137,780,000 km)^[1]
Eccentricity	0.0666 ± 0.0122^[1]
Orbital period	310.55 ± 0.83^[1] d 0.8502 y
Time of periastron	2452708.7 ± 8.3^[1]
Argument of periastron	189.6 ± 9.4^[1]
Semi-amplitude	14.91 ± 0.59^[1]
Star	Mu Arae