Which of the following statements is true about the celestial coordinates right ascension and declination?

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    They are measured with respect to the local zenith and horizon.
     They were used by the ancient Greeks to determine the size of the Sun.
     They travel in space from one day to the next due to the Earths rotation..
     They can be most easily measured with a protractor and plumb bob.
     They are fixed in space with respect to Earths axis and Suns direction at vernal equinox.x.
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

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They are fixed in space with respect to Earths axis and Suns direction at vernal equinox.x.
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)

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