(418993) 2009 MS9
Lua error in Module:Infobox at line 166: malformed pattern (missing ']'). (418993) 2009 MS9, provisionally known as 2009 MS9, is a centaur roughly 30–60 km in diameter. It has a highly inclined orbit and a barycentric semi-major axis (average distance from the Sun) of ~353 AU.[lower-alpha 1]
2009 MS9 has a well determined orbit and has been assigned a minor planet number. Objects such 2009 MS9 may be the origin of Halley-type comets.[2]
It came to perihelion in February 2013 at a distance of 11 AU from the Sun (outside the orbit of Saturn).[4] As of 2016[update], it is 12 AU from the Sun.[6]
It will not be 50 AU from the Sun until 2047. After leaving the planetary region of the Solar System, 2009 MS9 will have a barycentric aphelion of 696 AU with an orbital period of 6640 years.
In a 10 million year integration of the orbit, the nominal (best-fit) orbit and both 3-sigma clones remain outside 8.3AU (qmin) from the Sun.[3]
| Orbital evolution | |||||||
| Epoch | Barycentric Aphelion (Q) (AU) |
Orbital period yr |
|||||
|---|---|---|---|---|---|---|---|
| 1950 | 694 | 6610 | |||||
| 2050 | 696 | 6640 | |||||
Notes
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- Orbital simulation from JPL (Java) / Ephemeris
- Distant Minor Planets 248835 & 2009 MS9 – Remanzacco Observatory (15 August 2012)
- (418993) 2009 MS9 at the JPL Small-Body Database
- ↑ Lua error in package.lua at line 80: module 'strict' not found. (K09M09S)
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ 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)
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