Photometry of P/Halley (1982i)

  • C. Sterken
  • J. Manfroid
  • C. Arpigny
Conference paper

Summary

We report the results of photoelectric observations carried out during several weeks between 1985 September 12, and 1986 June 24. All measurements were made using the standard IAU/IHW cometary filters. Large amplitude night-to-night changes are superimposed on the general trend of slow brightness variation and support a 7 . d 4 period. The changes are seen as smooth variations with a range up to 0.2 mag on time scales of several hours.

Key words

coma filter photometry continuum neutrals and ions lightcurves P/Halley 

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References

  1. A’Hearn, M.F.: 1986, Photometric Transformations, Inter-national Halley WatchGoogle Scholar
  2. Communication, January 26, 1986 Cochran, A.L., Barker, E.S.: 1986, 20th ESL AB Symp., ESASP-250, Vol. I, p. 439Google Scholar
  3. Manfroid, J., Heck, A.: 1983, Astron. Astrohys. 120, 302Google Scholar
  4. Millis, R.L., Schleicher, D.G.: 1986, Nature 324, 646Google Scholar
  5. Smith, B. A., Larson, S.M., Szegö, K., Sagdeev, R.Z.: 1987, Nature 326, 573Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • C. Sterken
    • 1
  • J. Manfroid
    • 2
  • C. Arpigny
    • 2
  1. 1.Astrofysisch InstituutVrije Universiteit BrusselBrusselsBelgium
  2. 2.Institut d’AstrophysiqueUniversité de LiègeCointe-OugréeBelgium

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