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Assuming the arrow across the field of view covers 1/2 arcsecond, what is the distance to the star that appears to move between May and

Assuming the arrow across the field of view covers 1/2 arcsecond, what is the distance to the star that appears to move between May and November? (parallax angle = angle of separation2) (distance in parsecs = 1/parallax angle) (distance in parsecs = 2/angle of separation)

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