Color Variation of a Very Young Asteroid, Karin

Details Color Variation of a Very Young Asteroid, Karin Color Variation of a Very Young Asteroid, Karin

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pasj...59..269i&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.59, No.1, pp.269-275

Astronomy and Astrophysics

Astronomy

1

Minor Planets, Asteroids

Scientific paper

We present current results of our long-term campaign to make photometric observations of the new-born Karin family asteroids, especially those of (832) Karin. Karin, an S-type main-belt asteroid, is the largest member of the Karin family. This asteroid is likely a large fragment of a disruption event in the main asteroid belt that occurred about 5.8 million years ago. We obtained multi-color photometric observations of this asteroid in 2003 and 2004. We have reported a potential surface color variation of this asteroid, which indicates the existence of both mature and fresh surfaces on it. However, as of 2004 September, this asteroid apparently does not show a strong surface color difference, which might give us some insight into its spin axis orientation and shape. This is quite an interesting result, but it has to be confirmed by future observations.

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