Sedna
(90377 Sedna, 2003 VB12)
(distant solar system planetoid discovered in 2003)
90377 Sedna (or Sedna or 2003 VB12,
its provisional designation)
is an extreme Kuiper Belt object (a KBO with
high eccentricity and orbital inclination)
with an aphelion of 937 AU (18 times that of Pluto),
and a perihelion of 76 AU.
Its orbital period is about 11400 years.
It is currently approaching us, at about 84 AU,
due to reach its perihelion in 2076.
At the time of discovery, it was the most distant
solar system object under observation.
Some current theories regarding a Planet Nine aim
to explain the orbital inclination of Sedna and
similar objects.
Some research has been carried out as to the
viability of a flyby mission this century.
(minor planet,KBO,TNO,eccentricity)
Further reading:
https://en.wikipedia.org/wiki/90377_Sedna
https://minorplanetcenter.net/db_search/show_object?object_id=SEDNA
https://web.gps.caltech.edu/~mbrown/sedna/
https://www.jpl.nasa.gov/images/pia05568-sedna-discovery-image
https://www.britannica.com/place/Sedna
https://theplanets.org/sedna-facts/
https://www.universeguide.com/kuiperbeltobject/316/sedna
https://ui.adsabs.harvard.edu/abs/2004ApJ...617..645B/abstract
Redshift | Parsecs /Distance | Lightyears /Lookback Years | | |
~0 | 75AU | ~0ly | nearest | Sedna |
~0 | 0.01pc | 0.01ly | furthest | Sedna |
|
Referenced by pages:
Kuiper Belt (K Belt)
trans-Neptune object (TNO)
Index