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Old 12-10-2009, 12:44 PM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
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I'm not sure what your question actually is. The Hipparcos mission measured star positions, distances, parallaxes and proper motions. It would certainly have measurements for the star Antares which is about 600 ly distance and Deneb which is 3000 ly distance. The limitations on measurement were more to do with visual magnitude e.g. the Hipparcos catalogue lists some 118000 stars to visual magnitude 13 but is only complete to magnitude 7.3.

Regards, Rob
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