Nongravitational forces and light shift on Comet Halley

Details Nongravitational forces and light shift on Comet Halley Nongravitational forces and light shift on Comet Halley

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250c.289l&link_type=abstract

In ESA, Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 3: Posters p 289-294 (SEE N87-26714

Physics

4

Gravitation, Halley'S Comet, Light Curve, Orbital Mechanics, Axes Of Rotation, Brightness Distribution, Magnitude, Orbit Calculation

Scientific paper

The nongravitational forces in different parts of the orbit and the light shift are two effects of importance for precise ephemeris determination and modelling of comets. Comet Halley is the first comet which enables more detailed investigations. Results for the nongravitational parameters at three parts of the orbit and the direction of the rotational axis of the comet are given. It was found that the light shift is approximately proportional to the square root of the reduced magnitude and directly proportional to the geocentric distance.

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