Solar System Tests for Changing Gravity

Details Solar System Tests for Changing Gravity Solar System Tests for Changing Gravity

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.3705w&link_type=abstract

American Astronomical Society, 198th AAS Meeting, #37.05; Bulletin of the American Astronomical Society, Vol. 33, p.836

Astronomy and Astrophysics

Astronomy

14

Scientific paper

There is a three decade span of laser ranges to the Moon plus radar and spacecraft-derived ranges to the terrestrial planets. Analyses of the lunar and planetary data yield estimates of the rate of change of the gravitational constant G relative to G. Solutions using different data sets give uncertainties from 1.1x10-12 /yr to 1.8x10-12 /yr. The sensitivity increases quadratically with time, so future ranges will allow improved tests for the variation of G.

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