Physics – Optics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...138l...9w&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 1, Sept. 1984, p. L9, L10.
Physics
Optics
24
Astrometry, Astronomical Photometry, Halley'S Comet, Cassegrain Optics, Charge Coupled Devices, Image Processing, Telescopes, Variability, Comets, Halley, Photometry, Magnitude, Astronomy, Observations, Periods, Rotation, Astrometry, Short Period Comets, Procedure, Data
Scientific paper
Twenty-one photometric magnitudes of P/Halley (1982 i) have been measured on Jan. 27-30, 1984 with the Danish 1.5 m telescope at La Silla and a CCD. They have r.m.s. of + or 0.2 mag, and show night-to-night variability. The available material does not allow an unambiguous determination of a period of rotation, but short periods (not greater than 10 hours) are considered less likely.
Pedersen Holger
West Richard M.
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