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HIPPARCOS was a scientific mission of european space agency.
HIPPARCOS was a scientific mission of european space agency. ot was the first space experiment devoted to astrometry, the accurate measurement of star positions, distances, parallaxes, and proper motions. if the measured parallax shift of a star is 0.145 arcsecs, what is the distance to the star in light-years?
what is the numerical answer to the 2nd decimal