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- 47_Ursae_Majoris abstract "47 Ursae Majoris (abbreviated 47 UMa), also named Chalawan (Thai: ชาละวัน, pronounced [t͡ɕʰāː.lā.wān]), is a yellow dwarf star approximately 46 light-years from Earth in the constellation of Ursa Major. As of 2011, three extrasolar planets (designated 47 Ursae Majoris b, c and d; the first two later named Taphao Thong and Taphao Kaew) are believed to orbit the star.The star is located fairly close to the Solar System: according to astrometric measurements made by the Hipparcos astrometry satellite, it exhibits a parallax of 71.11 milliarcseconds, corresponding to a distance of 45.913 light-years. With an apparent magnitude of +5.03, it is visible to the naked eye and its absolute magnitude of +4.29 implies a visual luminosity around 60% greater than the Sun. A solar analog, with a spectral type of G1V, it has a similar mass to that of the Sun but is slightly hotter at around 5,882 K. and slightly more metal-rich with around 110% of the solar abundance of iron.Like the Sun, 47 Ursae Majoris is on the main sequence, converting hydrogen to helium in its core by nuclear fusion. Based on its chromospheric activity, the star may be around 6,000 million years old, though evolutionary models suggest an older age of around 8,700 million years. Other studies have yielded estimates of 4,400 and 7,000 million years for the star.".
- 47_Ursae_Majoris thumbnail Ursa_Major_constellation_map.svg?width=300.
- 47_Ursae_Majoris wikiPageExternalLink 47_UMa.
- 47_Ursae_Majoris wikiPageExternalLink 47uma.htm.
- 47_Ursae_Majoris wikiPageID "1197737".
- 47_Ursae_Majoris wikiPageLength "19573".
- 47_Ursae_Majoris wikiPageOutDegree "104".
- 47_Ursae_Majoris wikiPageRevisionID "705358269".
- 47_Ursae_Majoris wikiPageWikiLink 14_Herculis.
- 47_Ursae_Majoris wikiPageWikiLink 47_Ursae_Majoris_b.
- 47_Ursae_Majoris wikiPageWikiLink 47_Ursae_Majoris_c.
- 47_Ursae_Majoris wikiPageWikiLink 47_Ursae_Majoris_d.
- 47_Ursae_Majoris wikiPageWikiLink 51_Pegasi.
- 47_Ursae_Majoris wikiPageWikiLink 70_Virginis.
- 47_Ursae_Majoris wikiPageWikiLink Absolute_magnitude.
- 47_Ursae_Majoris wikiPageWikiLink Abundance_of_the_chemical_elements.
- 47_Ursae_Majoris wikiPageWikiLink Accretion_(astrophysics).
- 47_Ursae_Majoris wikiPageWikiLink Active_SETI.
- 47_Ursae_Majoris wikiPageWikiLink Apparent_magnitude.
- 47_Ursae_Majoris wikiPageWikiLink Astrometry.
- 47_Ursae_Majoris wikiPageWikiLink Astronomical_unit.
- 47_Ursae_Majoris wikiPageWikiLink Boss_General_Catalogue.
- 47_Ursae_Majoris wikiPageWikiLink Bright_Star_Catalogue.
- 47_Ursae_Majoris wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- 47_Ursae_Majoris wikiPageWikiLink Category:47_Ursae_Majoris.
- 47_Ursae_Majoris wikiPageWikiLink Category:G-type_main-sequence_stars.
- 47_Ursae_Majoris wikiPageWikiLink Category:Solar_analogs.
- 47_Ursae_Majoris wikiPageWikiLink Chalawan.
- 47_Ursae_Majoris wikiPageWikiLink Chromosphere.
- 47_Ursae_Majoris wikiPageWikiLink Circumstellar_habitable_zone.
- 47_Ursae_Majoris wikiPageWikiLink Constellation.
- 47_Ursae_Majoris wikiPageWikiLink Cosmic_Call.
- 47_Ursae_Majoris wikiPageWikiLink Debra_Fischer.
- 47_Ursae_Majoris wikiPageWikiLink Doppler_effect.
- 47_Ursae_Majoris wikiPageWikiLink Doppler_spectroscopy.
- 47_Ursae_Majoris wikiPageWikiLink Durchmusterung.
- 47_Ursae_Majoris wikiPageWikiLink Eurasia.
- 47_Ursae_Majoris wikiPageWikiLink Exoplanet.
- 47_Ursae_Majoris wikiPageWikiLink Extinction.
- 47_Ursae_Majoris wikiPageWikiLink Extrasolar_Planets_Encyclopaedia.
- 47_Ursae_Majoris wikiPageWikiLink Flamsteed_designation.
- 47_Ursae_Majoris wikiPageWikiLink G-type_main-sequence_star.
- 47_Ursae_Majoris wikiPageWikiLink Genus.
- 47_Ursae_Majoris wikiPageWikiLink Geoffrey_Marcy.
- 47_Ursae_Majoris wikiPageWikiLink Gliese_Catalogue_of_Nearby_Stars.
- 47_Ursae_Majoris wikiPageWikiLink Gravity.
- 47_Ursae_Majoris wikiPageWikiLink Helium.
- 47_Ursae_Majoris wikiPageWikiLink Henry_Draper_Catalogue.
- 47_Ursae_Majoris wikiPageWikiLink Hipparcos.
- 47_Ursae_Majoris wikiPageWikiLink Hydrogen.
- 47_Ursae_Majoris wikiPageWikiLink International_Astronomical_Union.
- 47_Ursae_Majoris wikiPageWikiLink Iron.
- 47_Ursae_Majoris wikiPageWikiLink Jupiter.
- 47_Ursae_Majoris wikiPageWikiLink Kelvin.
- 47_Ursae_Majoris wikiPageWikiLink Light-year.
- 47_Ursae_Majoris wikiPageWikiLink Lists_of_planets.
- 47_Ursae_Majoris wikiPageWikiLink Luminosity.
- 47_Ursae_Majoris wikiPageWikiLink Main_sequence.
- 47_Ursae_Majoris wikiPageWikiLink Mars.
- 47_Ursae_Majoris wikiPageWikiLink Mass.
- 47_Ursae_Majoris wikiPageWikiLink Metallicity.
- 47_Ursae_Majoris wikiPageWikiLink Methods_of_detecting_exoplanets.
- 47_Ursae_Majoris wikiPageWikiLink Minute_and_second_of_arc.
- 47_Ursae_Majoris wikiPageWikiLink Mythology.
- 47_Ursae_Majoris wikiPageWikiLink NASA.
- 47_Ursae_Majoris wikiPageWikiLink Naked_eye.
- 47_Ursae_Majoris wikiPageWikiLink Nuclear_fusion.
- 47_Ursae_Majoris wikiPageWikiLink Orbital_eccentricity.
- 47_Ursae_Majoris wikiPageWikiLink Orbital_inclination.
- 47_Ursae_Majoris wikiPageWikiLink Orbital_period.
- 47_Ursae_Majoris wikiPageWikiLink P.C._Gregory.
- 47_Ursae_Majoris wikiPageWikiLink Parallax.
- 47_Ursae_Majoris wikiPageWikiLink R._Paul_Butler.
- 47_Ursae_Majoris wikiPageWikiLink Radar.
- 47_Ursae_Majoris wikiPageWikiLink Radial_velocity.
- 47_Ursae_Majoris wikiPageWikiLink Satellite.
- 47_Ursae_Majoris wikiPageWikiLink Saturn.
- 47_Ursae_Majoris wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- 47_Ursae_Majoris wikiPageWikiLink Solar_System.
- 47_Ursae_Majoris wikiPageWikiLink Solar_analog.
- 47_Ursae_Majoris wikiPageWikiLink Spectrum.
- 47_Ursae_Majoris wikiPageWikiLink Star.
- 47_Ursae_Majoris wikiPageWikiLink Star_catalogue.
- 47_Ursae_Majoris wikiPageWikiLink Stars_and_planetary_systems_in_fiction.
- 47_Ursae_Majoris wikiPageWikiLink Stefan–Boltzmann_constant.
- 47_Ursae_Majoris wikiPageWikiLink Stellar_classification.
- 47_Ursae_Majoris wikiPageWikiLink Stellar_evolution.
- 47_Ursae_Majoris wikiPageWikiLink Sun.
- 47_Ursae_Majoris wikiPageWikiLink Teen_Age_Message.
- 47_Ursae_Majoris wikiPageWikiLink Terrestrial_Planet_Finder.
- 47_Ursae_Majoris wikiPageWikiLink Terrestrial_planet.
- 47_Ursae_Majoris wikiPageWikiLink Thailand.
- 47_Ursae_Majoris wikiPageWikiLink True_mass.
- 47_Ursae_Majoris wikiPageWikiLink Ursa_Major.
- 47_Ursae_Majoris wikiPageWikiLink Yevpatoria.
- 47_Ursae_Majoris wikiPageWikiLink File:47UMaOrbits.svg.
- 47_Ursae_Majoris wikiPageWikiLinkText "47 UMa".
- 47_Ursae_Majoris wikiPageWikiLinkText "47 Ursae Majoris".
- 47_Ursae_Majoris wikiPageWikiLinkText "Chalawan".
- 47_Ursae_Majoris wikiPageWikiLinkText "HD 95128".