Early recovery of Comet 55P/Tempel-Tuttle

Details Early recovery of Comet 55P/Tempel-Tuttle Early recovery of Comet 55P/Tempel-Tuttle

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...333..746h&link_type=abstract

Astronomy and Astrophysics, v.333, p.746-752 (1998)

Astronomy and Astrophysics

Astrophysics

30

Astrometry, Comets: Individual: 55P/Tempel-Tuttle, Meteors, Meteoroids

Scientific paper

We present recovery observations of the parent of the Leonid meteor stream - comet 55P/Tempel-Tuttle using the Keck II telescope. At recovery, the comet was at r = 4.5 AU, with m_R = 22.6, and there was no indication of coma or activity. Pre- and post-recovery observations from 6 observing runs (1994-1997 June) are presented. From these measurements we estimate that the nucleus radius is R_N = 1.8+/-0.2kmwith a nucleus axis ratio greater than 1.5. As of 6/97 (r = 3.5 AU), the comet activity had not yet started. Based on observations collected at the European Southern Observatory, La Silla, Chile, and University of Hawaii and Keck observatories on Mauna Kea, Hawaii

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