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goo ID
55576 Amycus
From Wikipedia, the free encyclopedia
Orbital diagram (top view)
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Discovery[1] and designation
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| Discovered by | NEAT |
| Discovery site | Palomar |
| Discovery date | 2002-04-08 |
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Designations
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| MPC designation | (182294) 2001 KU76 |
| Named after | Amycus |
| Alternate name(s) | 2002 GB10 |
| Minor planet category |
Centaur[1][2] |
| Adjective | Amycian |
| Epoch November 30, 2008 | |
| Aphelion | 35.092 AU (Q) |
| Perihelion | 15.205 AU (q) |
| Semi-major axis | 25.149 AU (a) |
| Eccentricity | 0.39539 |
| Orbital period | 126.12 yr |
| Mean anomaly | 16.515° (M) |
| Inclination | 13.336 ° |
| Longitude of ascending node | 315.59° |
| Argument of perihelion | 239.38° |
| Dimensions | 76.3 ± 12.5 km[3][4] |
| Geometric albedo | ~0.18[3] |
| Apparent magnitude | ~20[5] |
| Absolute magnitude (H) | 7.46[1] |
55576 Amycus (
/ˈæmɨkəs/), provisionally known as 2002 GB10, is a centaur discovered on April 8, 2002, by the NEAT at Palomar.[1]
55576 Amycus was named for Amycus, a male centaur in Greek mythology.
It came to perihelion in February 2003.[1]
Data from the Spitzer Space Telescope gave a diameter of 76.3 ± 12.5 km.[3][4]
A low probability asteroid occultation of star UCAC2 17967364 with an apparent magnitude of +13.8 was possible on February 11, 2009.[6]
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Near 3:4 resonance of Uranus
Amycus (2002 GB10) lies within 0.009 AU of the 3:4 resonance of Uranus and is estimated to have a long orbital half-life of about 11.1 Myr.[7]
It has been observed 76 times over 19 years and has an orbit quality code of 2.[1]
References
- ^ a b c d e f g "JPL Small-Body Database Browser: 55576 Amycus (2002 GB10)". 2007-08-15 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=55576. Retrieved 2009-02-28.
- ^ Marc W. Buie (2003-06-22 using 73 of 81 observations). "Orbit Fit and Astrometric record for 55576". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/55576.html. Retrieved 2009-02-28.
- ^ a b c John Stansberry, Will Grundy, Mike Brown, Dale Cruikshank, John Spencer, David Trilling, Jean-Luc Margot (2007-02-20). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". arXiv:astro-ph/0702538 [astro-ph].
- ^ a b Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2009-02-28.
- ^ "AstDys (55576) Amycus Ephemerides". Department of Mathematics, University of Pisa, Italy. http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.3.0&n=Amycus. Retrieved 2009-03-15.
- ^ Steve Preston (2009-01-08). "Star occultation by asteroid 55576 Amycus". IOTA (International Occultation Timing Association). http://www.asteroidoccultation.com/2009_02/0211_55576_17253_Summary.txt. Retrieved 2009-12-28.[dead link]
- ^ Horner, J.; Evans, N.W.; Bailey, M. E. (2004). "Simulations of the Population of Centaurs I: The Bulk Statistics". arXiv:astro-ph/0407400 [astro-ph].
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
Wiki links
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