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B Outer Solar System Origins Survey, Dwarf Planets and TNOs

  1. Jul 11, 2016 #1


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    "Nearly 1000 TNOs known to inhabit the outer Solar System have been discovered by OSSOS (or earlier CFEPS)." - OSSOS

    "Started in February 2013, OSSOS is a four-year project using the MegaPrime camera, a 1x1 degree imager on the 3.6m Canada-France-Hawaii Telescope (CFHT). The repeated tracking observations required to determine orbits are also obtained with the MegaPrime camera." - OSSOS

    Space.com has just published an announcement of a new TNO - 2015 RR245.

    Not much information on 2015 RR245. Its orbital period is ~700 years. Perihelion ~34 AU (next ~ 2096), aphelion ~120 AU.

    Back in 2011, Space.com published an article on Dwarf Planets.

    Meet the Solar System's Dwarf Planets
    By Mike Wall, Space.com Senior Writer | October 26, 2011 02:00pm ET

    In 2011, we had Pluto, Eris, Haumea, Makemake and Ceres

    By 2012, it was determined that Pluto has 5 moons: Charon, Styx, Nix, Kerberos, and Hydra.
    Styx was discovered 2012/06/26.

    Still a lot of research to be accomplished out there.
  2. jcsd
  3. Jul 12, 2016 #2
    This is about all the info I can find on RR245, http://cfht.hawaii.edu/en/news/NewDwarfPlanet/
    When the LSST comes on line as well as the upcoming data dump from Gaia we will hopefully get an abundance of info on these KBO's
  4. Jul 12, 2016 #3


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    What fractions of these newly discovered TNO's are considered to be Dwarf Planets?
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