Comet 81/P WIld
Comet 81/P Wild

Comet Wild 2 is a short periodic comet with an orbital period of 6 years. Before its close encounter with Jupiter during September 1974 his orbit was almost circular and had a 43 year period. But the gravitational pull of the giant gas planet made Wild 2 to a member of the inner solar system. In 2004 the comet was target of the NASA mission "Stardust", which took samples of the coma and returned them back to earth. Our image was obtained during a trip to southern france in February 2010 and shows a nice 1 degree long tail.

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PHA 2006 UF17

PHA 2006 UF17 was discovered by the Catalina Sky Survey on 19 October 2006. Impact Solutions were removed on October 25th. 40 frames of 30 second exposures were needed to bring out the 20.0 mag asteroid in bad seeing.

But with a SNR of 9 we were able to get a good fit, and the residuals of our astrometry were also surprisingly good. The big circular pattern moving in the background is suspected to be an artefact produced by our focal reducer and could not be compensated by a flatfield correction - which is a little odd. We are still investigating the cause for this.

2006 UF17

PHA, 20.0 mag , P.A. 264°, 3.00"/min
3 stacks of 40x30 sec., 16 inch SC, ST8-XME 2x2 binned.