Nongravitational Forces and Light Shift on Comet Halley
Abstract
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.
- Publication:
-
ESLAB Symposium on the Exploration of Halley's Comet
- Pub Date:
- December 1986
- Bibcode:
- 1986ESASP.250c.289L
- Keywords:
-
- Gravitation;
- Halley'S Comet;
- Light Curve;
- Orbital Mechanics;
- Axes Of Rotation;
- Brightness Distribution;
- Magnitude;
- Orbit Calculation;
- Astrophysics