What is the largest known orbit?

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The largest known orbit of an object around the sun remains uncertain, with references to various celestial bodies like Sedna, 2000 CR105, and 2000 OO67. The discussion highlights the potential for new observations to have surpassed the record previously held by HIDALGO. It notes the lack of a comprehensive, reliable list of comets and their orbits, complicating the search for definitive answers. Resources are suggested for further exploration of these orbits. The topic emphasizes the ongoing nature of astronomical discoveries and the need for updated information.
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What is the largest known orbit of an object around the sun? I searched on yahoo, but nothing.
 
Astronomy news on Phys.org
do a search for HIDALGO its record may have been beaten by
new observations .
 
Sedna, 2000 CR105, 2000 OO67, and "many comets" - according to http://www.ifa.hawaii.edu/faculty/jewitt/kb.html (look in the column marked "Q" for the ones that go furthest from the Sun).

AFAIK, there is no single, reliable list of comets (past and present) and their last known orbits. There are plenty of http://www9.ocn.ne.jp/~comet/ ... happy searching!
 
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