Issue |
A&A
Volume 417, Number 3, April III 2004
|
|
---|---|---|
Page(s) | 1159 - 1164 | |
Section | Planets and planetary systems | |
DOI | https://doi.org/10.1051/0004-6361:20035658 | |
Published online | 26 March 2004 |
Post-perihelion observations of comet 1P/Halley*
V: r
= 28.1 AU
1
European Southern Observatory, Casilla 19001, Santiago 19, Chile
2
Observatoire de Paris-Meudon - LESIA, 5 Place Jules Janssen, 92195 Meudon Cedex, France e-mail: Audrey.Delsanti@obspm.fr
3
Institute for Astronomy, University of Hawai`i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA e-mail: meech@ifa.hawaii.edu
4
European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching-bei-München, Germany e-mail: rwest@eso.org
Corresponding author: O. Hainaut, ohainaut@eso.org
Received:
11
November
2003
Accepted:
18
December
2003
Deep CCD observations have been performed simultaneously with the three 8.2 m Very Large Telescopes at Paranal, in the direction of comet 1P/Halley, on March 6–8, 2003. The comet, at
heliocentric distance AU, was convincingly detected (at
) on a composite of 32 284 s exposure, as a point-source located 1.4'' from the expected position. The object is also visible (at the
level) on independent per-night or per-instrument composites,
confirming the reality of the object, and the match of the observed motion over 3 consecutive nights with the predicted motion of 1P/Halley guarantees that this cannot be another Solar System object. The magnitude of the object,
± 0.13, is compatible with the average cross-section of the bare nucleus.
Key words: comets: individual: 1P/Halley
© ESO, 2004
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