Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-12T19:59:55.326Z Has data issue: false hasContentIssue false
  • English
  • Français

Nongravitational Forces on Comets

Published online by Cambridge University Press:  22 February 2018

B. G. Marsden

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The study of the nongravitational effects on comets began slightly more than a century and a half ago. As is well known, Encke (1819) demonstrated that comet 1819 I had a revolution period of not more than a few years and that the same comet had also been observed in 1786, 1795 and 1805. The observations clearly required that the revolution period be about 3.3 years, and Encke went on to remark that, after approximate allowance had been made for the perturbations by the planets, the average revolution period seemed to be 1207.9 days between 1795 and 1805, but only 1207.3 days between 1805 and 1819. As a result of a more refined computation of the planetary perturbations, the following year he (Encke 1820) was able to confirm these figures and find in addition that the average period between 1786 and 1795 was as much as 1208.1 days.

Type
Part I
Information
International Astronomical Union Colloquium , Volume 25 , Issue Part1: The Study of Comets , 1976 , pp. 465 - 489
Copyright
Copyright © NASA 1976

References

Asten, E. (1878). Mem. Acad. Imp. Sci. St. Petersbourg Ser. 7 26, No. 2.Google Scholar
Backlund, O. (1884). Mem. Acad. Imp. Sci. St. Petersbourg Ser. 7 32, No. 3Google Scholar
Backlund, O. (1910). Monthly Notices R. Astron. Soc. 70, 429.Google Scholar
Bessel, F. W. (1836). Astron. Nachr. 13, 345.Google Scholar
Bokhan, N. A. and Chernetenko, Yu. A. (1974). Astron. Zh. 51, 617.Google Scholar
Brady, J. L. (1972). Publ. Astron. Soc. Pacific 84, 314.Google Scholar
Cowell, P. H. and Crommelin, A. C. D. (1910). Publ. Astron. Gesellschaft No. 23, p. 60.Google Scholar
Delsemme, A. H. and Delsemme, J. (1971). Private communication.Google Scholar
Delsemme, A. H. and Miller, D. C. (1971). Planet. Space Sci. 19, 1229 CrossRefGoogle Scholar
Dubyago, A. D. (1950). Trudy Astron. Obs. Kazan No. 31, p. 25.Google Scholar
Encke, J. F. (1819). Berliner Astron. Jahrbuch für 1822, p. 180.Google Scholar
Encke, J. F. (1820). Berliner Astron. Jahrbuch für 1823, p. 211.Google Scholar
Encke, J. F. (1823). Berliner Astron. Jahrbuch für 1826, p. 124.Google Scholar
Encke, J. F. (1831). Astron. Nachr. 9, 317.Google Scholar
Encke, J. F. (1860). Math. Abh. Akad. Wiss. Berlin für 1859, p. 186.Google Scholar
Evdokimov, Yu. V. (1963). Astron. Zh. 40, 544.Google Scholar
Gautier, R. (1887). Mem. Soc. Phys. Genève 29, No. 12.Google Scholar
Goldreich, P. and Ward, W. R. (1972). Publ. Astron. Soc. Pacific 84, 737.Google Scholar
Haerdtl, E. (1889). Denk. Akad. Wiss. Wien 56, 151.Google Scholar
Hepperger, J. (1898). Sitzungsber. Mat.-Naturwiss. Cl. Kaiserl. Akad.Wiss. Wien 107 (Abt. 2a), 377.Google Scholar
Herget, P. and Carr, H. J. (1972). IAU Symp. No. 45, p. 195.Google Scholar
Herget, P. and Musen. P. (1953). IAU Circ. No. 1411.Google Scholar
Idel'son, N. (1935). Izv. Obs. Pulkovo 15, No. 1.Google Scholar
Kajmakov, E. A., Sharkov, V. I. and Zhuravlev, S. S. (1972). IAU Symp. No. 45, p. 316.Google Scholar
Kamieński, M. (1933). Acta Astron. Ser. A 3, 1.Google Scholar
Kiang, T. (1973). Monthly Notices R. Astron. Soc. 162, 271.CrossRefGoogle Scholar
Klemola, A. R. and Harlan, E. A. (1972). Publ. Astron. Soc. Pacific 84, 736.Google Scholar
Lamp, E. (1892). Publ. Kiel. Obs. 7, 37.Google Scholar
Leveau, G. (1877). Ann. Obs. Paris Mém. 14, Bl.Google Scholar
Makover, S. G. (1955). Trudy Inst. Teor. Astron. 4, 133.Google Scholar
Marsden, B. G. (1968). Astron. J. 73, 367.Google Scholar
Marsden, B. G. (1969). Astron. J. 74, 720.Google Scholar
Marsden, B. G. (1970). Astron. J., 75, 75.Google Scholar
Marsden, B. G. (1972). IAU Symp. No. 45, p. 135.Google Scholar
Marsden, B. G. and Sekanina, Z. (1971). Astron. J. 76, 1135.Google Scholar
Marsden, B. G. and Sekanina, Z. (1973). Astron. J. 78, 1118.CrossRefGoogle Scholar
Marsden, B. G. and Sekanina, Z. (1974). Astron. J. 79, 413.Google Scholar
Marsden, B. G., Sekanina, Z. and Yeomans, D. K. (1973). Astron. J. 78, 211.Google Scholar
Matkevich, L. (1935). Izv. Obs. Pulkovo 14, No. 6.Google Scholar
Maubant, E. (1914). Ann. Obs. Paris Mèm. 30, Dl.Google Scholar
Michielsen, H. (1968). Private communication.Google Scholar
Moller, A. (1861). Astron. Nachr. 54, 353.Google Scholar
Möller, A. (1865). Astron. Nachr. 64, 145.Google Scholar
Oort, J. H. (1950). Bull. Astron. Inst. Neth. 11, 91.Google Scholar
Oppolzer, T. (1880). Astron. Nachr. 97, 337.Google Scholar
Rahts, J. (1885). Astron. Nachr. 113, 169 CrossRefGoogle Scholar
Rasmusen, H. Q. (1967). Publ. Copenhagen Obs. No. 194.Google Scholar
Recht, A. W. (1939). Astron. J. 48, 65 Google Scholar
Roemer, E. (1961). Astron J. 66, 368.Google Scholar
Schubart, J. (1968). Quart. J. R. Astron. Soc. 9, 318.Google Scholar
Schulhof, L. (1898). Bull. Astron. 15, 321.CrossRefGoogle Scholar
Schulhof, L. (1899). Bull. Astron. 16, 298.Google Scholar
Schulze, L. R. (1878). Astron. Nachr. 93, 177.Google Scholar
Seidelmann, P. K., Marsden, B. G. and Giclas, H. L. (1972). Publ. Astron Soc. Pacific 84, 858.Google Scholar
Sekanina, Z. (1968). Bull. Astron. Inst. Czech. 19, 47.Google Scholar
Sekanina, Z. (1969). Astron. J. 74, 1223.Google Scholar
Sekanina, Z. (1972). IAU Symp. No. 45, p. 294.Google Scholar
Sitarski, G. (1964). Acta Astron. 14, 1.Google Scholar
Sitarski, G. (1970). Acta Astron. 20, 271.Google Scholar
Whipple, F. L. (1950). Astrophys. J. 111, 375.Google Scholar
Yeomans, D. K. (1971). Astron. J. 76, 83.Google Scholar
Yeomans, D. K. (1974). Publ. Astron. Soc. Pacific 86, 125.Google Scholar