Science Fair Project Encyclopedia
Graffias
Grafias is the designation of the star Xi Scorpii. Grafias is already a double star dissolvable in telescopes starting from 5 centimeters of lens aperture, consisting of +4.2 likes bright star of the spectral class F5 and +7.3 likes bright star of the spectral class G7. The angle distance between both stars amounts to 7.7"and the position angle of the fainter component concerning the main star has the value 47 degrees. Grafias is distant 80 light-years from the earth. Coordinates (equinox 2000,0) Rektaszension: 16h04m22.10s declination: -11°22'23.0 "
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details