Stromgren Photometry of C/1995 O1 in March 1997. Short-Term Variability

Details Stromgren Photometry of C/1995 O1 in March 1997. Short-Term Variability Stromgren Photometry of C/1995 O1 in March 1997. Short-Term Variability

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997dps....29.3216o&link_type=abstract

American Astronomical Society, DPS meeting #29, #32.16; Bulletin of the American Astronomical Society, Vol. 29, p.1036

Astronomy and Astrophysics

Astronomy

Scientific paper

We present uvby Stromgren photometry of comet C/1995 O1 Hale-Bopp, obtained during nearly three weeks in March 1997. The Fourier transform method has been used to analyse the periodicities present in the light curves. We have found two different periodicities: a long period of 7.19 days and a shorter one of 5.5 hours. The 5.5-hour periodicity may correspond to a full rotation of 11 hours whereas the 7.19-day periodicity could be related to the precession period. We discuss these results in terms of complex rotation of the nucleus.

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