One hundred astrometric positions of comet P/Halley (mostly in the pre-perihelion phase) have been derived from images taken at the Asiago and Merate Observatories. These positions have been used to determine a set of orbital elements for the comet that, although in good agreement with those of IHW Orbit Nr. 45, give smaller residuals.
Astrometric positions of comet P/Halley
BARBIERI, CESARE;CREMONESE, GABRIELE;
1987
Abstract
One hundred astrometric positions of comet P/Halley (mostly in the pre-perihelion phase) have been derived from images taken at the Asiago and Merate Observatories. These positions have been used to determine a set of orbital elements for the comet that, although in good agreement with those of IHW Orbit Nr. 45, give smaller residuals.
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