47 Ursae Majoris
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47 Ursae Majoris (abbreviated 47 UMa) is a yellow dwarf star similar to our Sun located approximately 46 light-years away in the constellation Ursa Major.
47 Ursae Majoris
(The Planet Project)
THE PLANET
The circle shows the location of the class G1 star 47 Ursae Majoris (in the constellation Ursa Major).
47 Ursae Majoris
47 UMa system compared with Jupiter's orbit around the Sun. Credit: Kirk Woellert, National Science Foundation
One of the first Sun-like stars to be found to have a planet.
47 Ursae Majoris
NASA
47 Ursae Majoris is a yellow-orange star
like our Sun, Sol. (See a Digitized
Sky Survey image of 47 Ursae Majoris
from the Nearby Stars Database.) ...
[8402] 47 Ursae Majoris is a yellow dwarf 46 light-years distant, notable for being a solar twin, a star very similar to our Sun. It is one of the top target stars for NASA's Terrestrial Planet Finder project.
You can arrive at 47 Ursae Majoris from a number of directions. Perhaps the easiest is to start at phi UMa and drop down in a south-south-west direction five degrees. You'll find three bright stars in a crescent.
It is likely that more planetary systems will be discovered using the methods that found 51 Pegasi, 70 Virginis and 47 Ursae Majoris. Exciting times are ahead!
The 51 Pegasi planetary system is quite different from our solar system.
Since that time, other notable discoveries have included:1996, 47 Ursae Majoris b: This Jupiter-like planet is the first long-period planet discovered, orbiting at 2.11 AU from the star with the eccentricity of 0.049.
Butler from the University of California San Francisco State and the University of California Berkeley announced discovery of two planets orbiting nearby solar-type stars, 47 Ursae Majoris and 70 Virginis.
 See also: Planet, Mass, Solar, Light, Jupiter
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