The nongravitational motion of comet P/Harrington and P/du Toit-Neujmin-Delporte

Details The nongravitational motion of comet P/Harrington and P/du Toit-Neujmin-Delporte The nongravitational motion of comet P/Harrington and P/du Toit-Neujmin-Delporte

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...155..169f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 155, no. 1, Jan. 1986, p. 169-171.

Astronomy and Astrophysics

Astronomy

1

Comets, Solar Orbits, Orbit Perturbation, Perihelions, Comets, Periodic Comets, Motion, Harrington, Du Toit-Neujmin-Delporte, Parameters, Calculations, Perturbations, Earth-Based Observations, Astronomy, Celestial Mechanics

Scientific paper

The motion of the periodic comets Harrington and du Toit-Neujmin-Delporte has been studied. The effect of the nongravitational forces has been included, and the parameters A1 and A2 have been derived. Since both comets show large observational gaps, an attempt was made to link the observations assuming that the nongravitational parameter A2 was constant up to a fixed time and then changed in value and/or sign to another constant value. While it appears difficult to obtain better results from these computations, it is clear that it is possible to make some inferences on the past motion of the two comets.

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