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REPORT COPYRIGHT VIOLATION IN REPLY
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Message Subject
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Astronomer Tracking Instructions For The ELEnin Comet/Dwarf Star
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Poster Handle
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Aquarius58 |
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Post Content
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Ok, what does that have to do with Elenin? Quoting: AstronutI'm trying to understand the orbit of Elenin by studying Sedna's highly eccentric orbit. The paper... ABSTRACT
We report the discovery of the minor planet (90377) Sedna, the most distant object ever seen in the solar system.
Prediscovery images from 2001, 2002, and 2003 have allowed us to refine the orbit sufficiently to conclude
that Sedna is on a highly eccentric orbit that permanently resides well beyond the Kuiper Belt with a semimajor
axis of 480+/-40 AU and a perihelion of 76+/-4 AU. Such an orbit is unexpected in our current understanding
of the solar system but could be the result of scattering by a yet-to-be-discovered planet, perturbation by an
anomalously close stellar encounter, or formation of the solar system within a cluster of stars. In all of these cases
a significant additional population is likely present, and in the two most likely cases Sedna is best considered a
member of the inner Oort Cloud, which then extends to much smaller semimajor axes than previously expected.
Continued discovery and orbital characterization of objects in this inner Oort Cloud will verify the genesis of this
unexpected population. Quoting: Mike Brown...is fascinating to me. [ link to iopscience.iop.org]
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