photocentric

photo- +‎ centric

photocentric (not comparable)

1. (astronomy) Relating to a photocentre
   • 2015, Seth C. Koren, Cullen H. Blake, Conard C. Dahn, Hugh C. Harris, “The Low-Mass Astrometric Binary LSR1610-0040”, in arXiv‎:

     We find that the photocentric orbit has a period ${\displaystyle P=633.0\pm 1.7}$ days, somewhat longer than previous results, with eccentricity of ${\displaystyle e=0.42\pm 0.03}$ , and we estimate that the semi-major axis of the orbit of the primary is ${\displaystyle a_{1}\approx 0.32}$ AU, consistent with previous results.