Mu Arae d - Misplaced Pages

(Redirected from Rocinante (planet)) Extrasolar planet orbiting the star Mu Arae

Mu Arae d / Rocinante
Discovery
Discovered by	Goździewski et al. Mayor, Pepe
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 (sidereal)	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. 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. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the winning name was Rocinante for this planet. The winning name was submitted by the Planetario de Pamplona, Spain. Rocinante was the horse of the lead character of the novel Don Quixote.

References

^ 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. S2CID 59157984.
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. S2CID 2241081.
NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars. IAU.org. 9 July 2014
"NameExoWorlds The Process". Archived from the original on 2015-08-15. Retrieved 2015-09-05.
Final Results of NameExoWorlds Public Vote Released, International Astronomical Union, 15 December 2015.
"NameExoWorlds The Approved Names". Archived from the original on 2018-02-01. Retrieved 2016-01-03.

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

Constellation of Ara

Stars

Bayer	α (Choo/Tchou) β γ δ ε ε ζ (Tseen Yin) η θ ι κ λ μ (Cervantes) ν (V539) ν π ρ ρ σ
Variable	R S OY V626 V821 V828 V829 V854 V862 V872
HR	6177 6187 6207 6236 6251 6253 6297 6300 6312 6323 6408 6416 (41 G.) 6423 6438 6477 6478 6483 6487 6513 6759
HD	152079 153201 154672 154857 156411 (Inquill)
Other	2MASS J18082002−5104378 CXOU J164710.2−455216 Gliese 674 Gliese 676 IRAS 16594-4656 SAO 244567 SGR 1627−41 Westerlund 1-20 Westerlund 1 W26 Westerlund 1-75 Westerlund 1-237 Westerlund 1-243 XTE J1650−500

Exoplanets	Gliese 674 b HD 154672 b HD 154857 b c HD 156411 b μ Arae b c d e

Star
clusters

NGC	6193 6200 6204 6208 6250 6352 6362 6397
Other	ESO 280-SC06 IC 4651 Westerlund 1

Nebulae

NGC	6188 6326
Other	Stingray Nebula Water Lily Nebula

Galaxies

NGC	6215 6221 6300 6328