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
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- Orbital simulation from JPL (Java) / Horizons Ephemeris
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