Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991plas.rept....9b&link_type=abstract
In NASA, Washington, Reports of Planetary Astronomy, 1991 p 9-10 (SEE N92-12792 03-89)
Astronomy and Astrophysics
Astronomy
Comet Nuclei, Cometary Atmospheres, Halley'S Comet, Nuclear Spin, Photometry, Charge Coupled Devices, Ephemerides, Perihelions, Planetary Composition, Solar Position, Time Series Analysis
Scientific paper
The scientific objectives were as follows: (1) to construct a well sampled photometric time series of comet Halley extending to large heliocentric distances both post and pre-perihelion passage and derive a precise ephemeris for the nuclear spin so that the physical and chemical characteristics of individual regions of activity on the nucleus can be determined; and (2) to extend the techniques in the study of Comet Halley to the study of other cometary nuclei and to obtain new observational data.
Belton Michael J. S.
Mueller Beatrice
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