オールト雲起源の不活動彗星核C/2002CE10の可視・近赤外線・中間赤外線観測

関口 朋彦; 高遠 徳尚; 宮坂 正大; ブディ デルマワン; 渡部 潤一

doi:10.14909/jsps.2004f.0.79.0

Abstracts 2004 Fall Meeting of the Japanese Society for Planetary Sciences

Session ID : P313

DOI https://doi.org/10.14909/jsps.2004f.0.79.0

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Host: The Japanese Society for Planetary Sciences: Local Organizing Committee for 2004 Fall Meeting

Poster session 3: Oct. 15, 14:46-16:15

Multi-color and Spectroscopic Observations of the Most Inactive Cometary Nucleus C/2002CE10

*Tomohiko Sekiguchi, Naruhisa Takato, Seidai Miyasaka, Dermawan Budi, Junichi Watanabe

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Abstract

We present multi-color photometric and spectroscopic observations of C/2002 CE10. The derived diameter and the geometric albedo are 11.4 (+0.9/-0.8)km and 0.02 (+0.006/-0.003), respectively. From the photometric analysis in BVRI, its surface color are in the taxonomy of D-type. From the time-resolved differential photometry, rotational period is determined to be 8.187 hrs.Consequently, this object is very dark, red and a very inactive cometary nucleus. Information on such minor body allow us to investigate evolutional link between comets and asteroids.

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