55576 Amycus
Orbital diagram (top view) | |
Discovery [1] | |
---|---|
Discovered by | NEAT |
Discovery site | Palomar |
Discovery date | 8 April 2002 |
Designations | |
MPC designation | 55576 Amycus |
Named after | Amycus |
2002 GB10 | |
Centaur [1][2] | |
Adjectives | Amycian |
Orbital characteristics [1] | |
Epoch 30 November 2008 | |
Aphelion | 35.092 AU (Q) |
Perihelion | 15.205 AU (q) |
25.149 AU (a) | |
Eccentricity | 0.39539 |
126.12 yr | |
16.515° (M) | |
Inclination | 13.336 ° |
315.59° | |
239.38° | |
Physical characteristics | |
Dimensions | 76.3 ± 12.5 km [3][4] |
~ 0.18 [3] | |
~ 20 [5] | |
7.46 [1] | |
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55576 Amycus /ˈæmᵻkəs/, 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]
Another such event involving a star with an apparent magnitude of +12.9 occurred on 2014 April 10 about 10h 46m Universal Time, visible for observers in the southwest USA and western Mexico.[7]
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.[8]
It has been observed 76 times over 19 years and has an orbit quality code of 2.[1]
See also
References
- 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 55576 Amycus (2002 GB10)" (2007-08-15 last obs). Retrieved 2009-02-28.
- ↑ Marc W. Buie. "Orbit Fit and Astrometric record for 55576" (2003-06-22 using 73 of 81 observations). SwRI (Space Science Department). Retrieved 2009-02-28.
- 1 2 3 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].
- 1 2 Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 13 February 2009. Retrieved 2009-02-28.
- ↑ "AstDys (55576) Amycus Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-03-15.
- ↑ Steve Preston (2009-01-08). "Star occultation by asteroid 55576 Amycus". IOTA (International Occultation Timing Association). Retrieved 2009-12-28.
- ↑ Hans-J. Bode; Filipe Braga Ribas; B. Sicardy (2013). "Bright Star Occultations by TNOs in 2014. J. Occultation Astronomy 2014-1.". IOTA (International Occultation Timing Association).
- ↑ 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
- 55576 Amycus at the JPL Small-Body Database
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