Host: The Japanese Society for Planetary Sciences: Local Organizing Committee for 2006 Fall Meeting
Since 2002 November we have begun a campaign of lightcurve observation of the asteroids belonging to the Karin family which is as young as only 5.8 Myr old. Though our entire project is still on the way, multi-color observations in visible and near-infrared wavelength of the largest member of the family, (832) Karin, have suggested us the potential existence of a very interesting color variation on this asteroid's surface. The asteroid might have both an old, mature surface that probably had been a part of a parent body of the Karin family, as well as a new, fresh surface that the collisional event created. At the opposition of 2003 September, we observed a reddened and old surface on this asteroid, while in 2003 September we could not observeit. In this poster we report our latest result by a three-color near-infrared photometry of this asteroid that weperformed in 2006 February.
