Hi Rolf,
Thank you for posting a link to your incredibly impressive observation of this faint
object, made all the more remarkable given the modest equipment used
to capture the image, which is also testimony to your skill in using the tools at hand.
The background information you provided was fascinating and it motivated this
reader sufficiently to Google in order to learn a little more. An excellent Wikipedia
article was found here -
http://en.wikipedia.org/wiki/50000_Quaoar
and a recent short paper by Fraser and Brown, (Brown and Triujillio were the original discovers),
entitled "Quaoar: a Rock in the Kuiper Belt" here -
http://arxiv4.library.cornell.edu/PS...003.5911v1.pdf
Some additional background here on The Planetary Society web site -
http://www.planetary.org/blog/article/00002420/
Thanks again!
Best Regards
Gary
Mt Kuring-Gai NSW Australia