47 Ursae Majoris, often abbreviated as 47 UMa, is a solar twin, yellow dwarf star approximately 46 light-years away from Earth in the constellation of Ursa Major. As of 2008, it has been confirmed that two extrasolar planets orbit the star. Because of this, 47 Ursae Majoris was listed as one of top 100 target stars for NASA's former Terrestrial Planet Finder mission.
47 Ursae Majoris is located fairly close to our solar system: according to astro...
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47 Ursae Majoris, often abbreviated as 47 UMa, is a solar twin, yellow dwarf star approximately 46 light-years away from Earth in the constellation of Ursa Major. As of 2008, it has been confirmed that two extrasolar planets orbit the star. Because of this, 47 Ursae Majoris was listed as one of top 100 target stars for NASA's former Terrestrial Planet Finder mission.
47 Ursae Majoris is located fairly close to our solar system: according to astrometric measurements made by the Hipparcos astrometry satellite, the star exhibits a parallax of 71.04 milliarcseconds, corresponding to a distance of 14.1 parsecs. With an apparent magnitude of +5.03, it is visible to the naked eye under good conditions.
47 Ursae Majoris has a similar mass to that of our Sun. It is slightly more metal-rich than the Sun, having around 110% of the solar abundance of iron. With a spectral type of G1V, it is also slightly hotter than the Sun, at around 5,882 K. 47 Ursae Majoris has an absolute magnitude of +4.29,...
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