Georg Friedrich Julius Arthur von Auwers (12 September 1838 – 24 January 1915) was a German astronomer.
He specialized in astrometry, making very precise measurements of stellar positions and motions.
He detected the companion stars of Sirius and Procyon from their effects on the main star's motion, before telescopes were powerful enough to visually observe them.
He was from 1866 Secretary to the Berlin Academy, and directed expeditions to measure the transits of Venus, in order to measure the distance from the earth to the Sun more accurately, and therefore be able to calculate the dimensions of the Solar System more accurately and with greater precision.
His grave is preserved in the Protestant Friedhof I der Jerusalems- und Neuen Kirchengemeinde (Cemetery No.