A1S1T1R1O1M3E1T1R1Y4
15 points
ASTROMETRY is validvalid
the art of making measurements among the stars, or of determining their relative magnitudes
the art of making measurements among the stars, or of determining their relative magnitudes
the art of making measurements among the stars, or of determining their relative magnitudes
the art of making measurements among the stars, or of determining their relative magnitudes