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New dwarf planet! 2015 RR245
Lucas
post Jul 12 2016, 02:48 AM
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Press release from the Canada-France-Hawaii Telescope, http://www.cfht.hawaii.edu/en/news/NewDwarfPlanet/

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An international team of astronomers have discovered a new dwarf planet orbiting in the disk of small icy worlds beyond Neptune. The new object is roughly 700 kilometers in size and has one of the largest orbits for a dwarf planet. Designated 2015 RR245 by the International Astronomical Union's Minor Planet Center, it was found using the Canada-France-Hawaii Telescope on Maunakea, Hawaii, as part of the ongoing Outer Solar System Origins Survey (OSSOS)."


Orbital elements from IAU MPC: http://www.minorplanetcenter.net/mpec/K16/K16N67.html
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Floyd
post Jul 12 2016, 11:25 AM
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Large elliptical orbit 34 AU to 120 AU. About 700 years to complete orbit. Perihelion in 2096.

From link above:




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nprev
post Jul 15 2016, 07:11 AM
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MOD NOTE: With the exception of the first two posts, the discussion has been less about 2015 RR245 per se than it has about a hypothesized undiscovered major planet. Accordingly, all other posts have been moved to the extant thread that was created for that topic.


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A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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alan
post Jul 26 2016, 04:07 PM
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OSSOS: IV. Discovery of a dwarf planet candidate in the 9:2 resonance
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JohnVV
post Jul 26 2016, 08:30 PM
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for any interested , the orbital data for "2015 RR245" is in HORIZONS
The spice kernel is for only 201 years but at this point using just a single date for the orbit would work

see the spice section of Celestial matters forum
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