2012 DR30
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2012 DR30 (2009 FW54)[7][8] is a minor planet (trans-Neptunian object or extended centaur)[2] from the scattered disk/Inner Oort cloud. Using an epoch of December 2014, it has the second-largest heliocentric semi-major axis of a minor planet not detected out-gassing like a comet.[9] (2005 VX3 has a larger heliocentric semi-major axis.) 2012 DR30 does have a barycentric semi-major axis of 1,032 AU.[10][lower-alpha 1] The epoch of July 2018 will be when 2012 DR30 will have its largest heliocentric semi-major axis of 1644 AU.
2012 DR30 came to perihelion in March 2011 at a distance of 14.5 AU from the Sun (inside the orbit of Uranus).[3] As of 2016[update], it is 16 AU from the Sun.[5] With an absolute magnitude (H) of 7.1,[6] the object has an estimated diameter of 185 km.[4][7]
With an observation arc of 14.7 years,[3] it has a well constrained orbit. It will not be 50 AU from the Sun until 2047. After leaving the planetary region of the Solar System, 2012 DR30 will have a barycentric aphelion of 2049 AU with an orbital period of 33100 years.[lower-alpha 1]
| Orbital evolution | |||||||
| Epoch | Barycentric Aphelion (Q) (AU) |
Orbital period yr |
|||||
|---|---|---|---|---|---|---|---|
| 1950 | 2000 | 32000 | |||||
| 2050 | 2049 | 33100 | |||||
In a 10 million year integration of the orbit, the nominal (best-fit) orbit and both 3-sigma clones remain outside 12.5AU (qmin) from the Sun.[2]
Comparison
See also
- 2002 RN109
- 2005 VX3
- (308933) 2006 SQ372
- 2007 TG422
- 90377 Sedna
- List of hyperbolic comets
- Planet Nine
Notes
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<references />, or <references group="..." />External links
- JPL Small-Body Database Browser (2012 DR30 = 2009 FW54)
- Mysterious solar system object 2012 DR30: period ~50,000 years, inclination 75°, perihelion 14 AU
- Transneptunian Object 2012 DR30 - Is it a comet?
- Images 2012 DR30
- 2012 DR30 (Seiichi Yoshida)
- Webcite archive of Epoch 2016-Jan-13 with aphelion (Q) of 2789AU
- 2012 DR30 at the JPL Small-Body Database
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found. (WayBackMachine 2016-02-05)
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2012 DR30 - Ein Transneptun mit ungewöhnlicher Bahn
- ↑ Lua error in package.lua at line 80: module 'strict' not found. (Epoch defined at will change every 6 months or so)
- ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found. (Solution using the Solar System Barycenter and barycentric coordinates. Select Ephemeris Type:Elements and Center:@0)
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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