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- Mu_Arae_c abstract "Mu Arae c, also known as HD 160691 c, later named Dulcinea, is an extrasolar planet orbiting the star Mu Arae of the constellation Ara. It was the first 'hot Neptune' or 'super-Earth' to be discovered.In July 2014 the International Astronomical Union launched 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 Dulcinea for this planet. The winning name was submitted by the Planetario de Pamplona, Spain. Dulcinea was the love-interest of the lead character of the novel El Ingenioso Hidalgo Don Quixote de la Mancha.The planet's discovery was announced on August 25, 2004. At the time, its minimum mass was reported at just 14 times that of Earth, although later work established a value of 10.5 Earth masses. It orbits very close to Mu Arae, completing one revolution every 9.6 days. The discovery was made with the aid of the High Accuracy Radial Velocity Planet Searcher (HARPS) spectrograph, at the European Southern Observatory's La Silla Observatory in Chile. The data that revealed the presence of this planet was gathered on 8 nights of observations in June 2004.Assuming its true mass is comparable to those of Neptune and Gliese 436 b, 14 Earth masses is theoretically the maximum size for a terrestrial planet. A rocky planet this size could certainly have formed, since Mu Arae has a higher metallicity than our Sun. Also, it is thought to have formed well inside the system's \"snow line\" at 3.2 AU. However, various models of the system's formation have since converged that the planet attracted large amounts of volatiles before its star had cleared out the ice, and that it now has a core of only 6 Earth masses. Its core is likely enveloped in so much hot-ice and gas that the planet would behave more like Neptune.Mu Arae c is too far from its sun to be subject to coronal mass ejections. There is disagreement as to whether it is and has always been a hot Neptune in mass (Lammer), or if it could have developed from a gas giant, losing most of its mass on the way (Baraffe).If an eroded gas giant, the sun would have boiled the planet from a larger protoplanet, of 20 Earth masses up to half Jupiter's mass. If the latter, its current radius could be as high as 0.6 Jupiter.The planet must be hot because of its proximity to its star. The discoverers chose for it an albedo of 0.35, lighter than albedos chosen to calculate the temperatures of hot Jupiters such as tau Boötis b. This was perhaps due to the discoverers' assumption that the planet would be a silicate super-terrestrial with neither clouds nor a deep Rayleigh-scattering atmosphere. If so the surface temperature would be about 900 K.None of the four planets orbiting Mu Arae are directly visible from Earth using currently available tools. All four were found using the radial velocity method of extrasolar planet detection.".
- Mu_Arae_c wikiPageID "6767264".
- Mu_Arae_c wikiPageLength "8269".
- Mu_Arae_c wikiPageOutDegree "44".
- Mu_Arae_c wikiPageRevisionID "698021981".
- Mu_Arae_c wikiPageWikiLink 55_Cancri_e.
- Mu_Arae_c wikiPageWikiLink Ara_(constellation).
- Mu_Arae_c wikiPageWikiLink Category:Ara_(constellation).
- Mu_Arae_c wikiPageWikiLink Category:Exoplanets.
- Mu_Arae_c wikiPageWikiLink Category:Exoplanets_detected_by_radial_velocity.
- Mu_Arae_c wikiPageWikiLink Category:Exoplanets_discovered_in_2004.
- Mu_Arae_c wikiPageWikiLink Category:Hot_Neptunes.
- Mu_Arae_c wikiPageWikiLink Category:Super-Earths.
- Mu_Arae_c wikiPageWikiLink Category:Terrestrial_planets.
- Mu_Arae_c wikiPageWikiLink Chile.
- Mu_Arae_c wikiPageWikiLink Coronal_mass_ejection.
- Mu_Arae_c wikiPageWikiLink Don_Quixote.
- Mu_Arae_c wikiPageWikiLink Dulcinea_del_Toboso.
- Mu_Arae_c wikiPageWikiLink Earth.
- Mu_Arae_c wikiPageWikiLink European_Southern_Observatory.
- Mu_Arae_c wikiPageWikiLink Exoplanet.
- Mu_Arae_c wikiPageWikiLink Francesco_Pepe.
- Mu_Arae_c wikiPageWikiLink François_Bouchy.
- Mu_Arae_c wikiPageWikiLink Gliese_436_b.
- Mu_Arae_c wikiPageWikiLink High_Accuracy_Radial_Velocity_Planet_Searcher.
- Mu_Arae_c wikiPageWikiLink Hot_Jupiter.
- Mu_Arae_c wikiPageWikiLink Hot_Neptune.
- Mu_Arae_c wikiPageWikiLink International_Astronomical_Union.
- Mu_Arae_c wikiPageWikiLink Kelvin.
- Mu_Arae_c wikiPageWikiLink La_Silla_Observatory.
- Mu_Arae_c wikiPageWikiLink Metallicity.
- Mu_Arae_c wikiPageWikiLink Michel_Mayor.
- Mu_Arae_c wikiPageWikiLink Mu_Arae.
- Mu_Arae_c wikiPageWikiLink Neptune.
- Mu_Arae_c wikiPageWikiLink Nuño_Santos.
- Mu_Arae_c wikiPageWikiLink Radial_velocity.
- Mu_Arae_c wikiPageWikiLink Spain.
- Mu_Arae_c wikiPageWikiLink Spectrograph.
- Mu_Arae_c wikiPageWikiLink Star.
- Mu_Arae_c wikiPageWikiLink Super-Earth.
- Mu_Arae_c wikiPageWikiLink Tau_Boötis_b.
- Mu_Arae_c wikiPageWikiLinkText "Dulcinea".
- Mu_Arae_c wikiPageWikiLinkText "Mu Arae c".
- Mu_Arae_c wikiPageWikiLinkText "c (Dulcinea)".
- Mu_Arae_c wikiPageWikiLinkText "c".
- Mu_Arae_c wikiPageWikiLinkText "mu Arae c".
- Mu_Arae_c age "6.34".
- Mu_Arae_c apastron "0.10659".
- Mu_Arae_c apastronGm "15.946".
- Mu_Arae_c appMag "5.15".
- Mu_Arae_c argPeri "212.7".
- Mu_Arae_c class "G3IV–V".
- Mu_Arae_c colwidth "30".
- Mu_Arae_c constell Ara_(constellation).
- Mu_Arae_c date "July 2013".
- Mu_Arae_c discoverers François_Bouchy.
- Mu_Arae_c discoverers Nuño_Santos.
- Mu_Arae_c discoverers "Mayor, Pepe".
- Mu_Arae_c discoveryDate "2004-08-25".
- Mu_Arae_c discoveryMethod High_Accuracy_Radial_Velocity_Planet_Searcher.
- Mu_Arae_c discoverySite Chile.
- Mu_Arae_c discoverySite La_Silla_Observatory.
- Mu_Arae_c discoveryStatus "Published".
- Mu_Arae_c distLy "50.6".
- Mu_Arae_c distPc "15.51".
- Mu_Arae_c eccentricity "0.172".
- Mu_Arae_c mass "1.1".
- Mu_Arae_c metallicity "0.3".
- Mu_Arae_c minimumMass "0.03321".
- Mu_Arae_c minimumMassEarth "10.55".
- Mu_Arae_c periastron "0.07529".
- Mu_Arae_c periastronGm "11.264".
- Mu_Arae_c period "9.6386".
- Mu_Arae_c periodYear "0.02639".
- Mu_Arae_c radius "1.36".
- Mu_Arae_c reason "Formatting is messed up".
- Mu_Arae_c semiAmp "3.06".
- Mu_Arae_c semimajor "0.09094".
- Mu_Arae_c semimajorGm "13.605".
- Mu_Arae_c star Mu_Arae.
- Mu_Arae_c tPeri "2452991.1".
- Mu_Arae_c temperature "5820".
- Mu_Arae_c wikiPageUsesTemplate Template:Cleanup.
- Mu_Arae_c wikiPageUsesTemplate Template:DEC.
- Mu_Arae_c wikiPageUsesTemplate Template:Mu_Arae.
- Mu_Arae_c wikiPageUsesTemplate Template:Nearest_bright_star_systems.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_begin.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_catalog.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_character.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_discovery.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_end.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_orbit.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_reference.
- Mu_Arae_c wikiPageUsesTemplate Template:Planetbox_star.
- Mu_Arae_c wikiPageUsesTemplate Template:RA.
- Mu_Arae_c wikiPageUsesTemplate Template:Reflist.
- Mu_Arae_c wikiPageUsesTemplate Template:Sky.
- Mu_Arae_c subject Category:Ara_(constellation).
- Mu_Arae_c subject Category:Exoplanets.
- Mu_Arae_c subject Category:Exoplanets_detected_by_radial_velocity.