planetocentricadj.
/ˌplanᵻtə(ʊ)ˈsɛntrɪk/, U.S. /ˈˌplænədoʊˈsɛntrɪk/ Astronomy and Astronautics.
Referred to, measured from, or having a planet as centre (usually a planet other than the earth), esp. using a right-handed coordinate system whose axes are the axis of rotation of the planet and two perpendicular axes in the equatorial plane of the planet.
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the world > the universe > planet > [adjective]
planetical?a1563
planetary1593
planetal1624
planetic1631
planetarian1652
planeted1745
planetocentric1856
preplanetary1869
protoplanetary1957
1856 J. M. Gilliss U.S. Naval Astron. Exped. S. Hemisphere III. p. lxxxvi Its visible boundary will be projected on the plane of the apparent disc as a semi-ellipse. The plane is horned or gibbous, according as the planetocentric angle between earth and sun is more or less than 90°.
1911 Monthly Notices Royal Astron. Soc. 71 400 In [equation] (24) τis the proper-time of the planet, or planeto-centric time.
1960 R. M. L. Baker & M. W. Makemson Introd. Astrodynamics xii. 264 The regions in space where one would expect the vehicle to be in a predominantly geocentric, heliocentric, or planetocentric field, can be delineated by calculating the ratio of the perturbative accelerations to the two-body acceleration.
1972 Nature 11 Aug. 325/2 The heliocentric orbital longitude of Mars η, and the planetocentric longitude of the Sun are approximately related by η = L3 + 85°.
1992 J. L. Hilton in P. K. Seidelmann Explanatory Suppl. to Astron. Almanac vii. 385 Planetocentric coordinates are used for general purposes and are based on a right-handed system of axes with its origin at the center of mass of the object.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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adj.1856