Sedna

NOUN
  1. a planetoid of rock and ice about three-quarters the size of Pluto discovered in 2003; the most distant object known to orbit around the sun
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How To Use Sedna In A Sentence

  • This almost certainly indicates that Sedna is spinning, completing a revolution every 20 days.
  • Since no images of Makemake's surface yet exist, an artist's illustration originally meant to depict Sedna has been boldly co-opted above to now illustrate Makemake.
  • The highly tilted orbit of Haumea and elongated one of Sedna suggest something even more dramatic perhaps shook up the early comet belt, such as a supernova blast from a nearby star's implosion. Dwarf planets Pluto, Eris battle for a spot in a vast universe
  • The new "planetoid," named Sedna after an Inuit goddess who created the sea creatures of the Arctic, is by far the coldest and most distant object known to orbit the sun, a team of researchers announced. Welcome to S-s-s-s-edna
  • Sedna is rotating much more rapidly than originally believed, spinning once on its axis every 10 hours.
  • Sedna, the mysterious minor planet orbiting the Sun beyond the far edge of the Kuiper Belt, is gradually yielding its secrets to planetary scientists.
  • Since no images of Makemake's surface yet exist, an artist's illustration originally meant to depict Sedna has been boldly co-opted above to now illustrate Makemake.
  • The most important hint about the existence of Nemesis is a mysterious Sedna dwarf star around the sun-borne elongated orbit. Once she crosses the circle of more than 12 million. years.
  • But Sedna is smaller and more eccentric still, so if you count out Pluto, you have to count out Sedna too (and all the other remote planetoids discovered over the past few years).
  • If Sedna did form this far out, it is likely to be accompanied by a cohort of other large planetoids in this very distant region of the solar system.
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