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55576 Amycus
Centaur
Centaur
| Field | Value | |
|---|---|---|
| minorplanet | yes | |
| background | #C7FF8F | |
| name | 55576 Amycus | |
| symbol | [[File:Amycus symbol (bold).svg | 24px]] (astrological) |
| image | 55576 Amycus.tiff | |
| caption | Orbital diagram (top view) | |
| discovery_ref | ||
| discoverer | NEAT | |
| discovery_site | Palomar | |
| discovered | 8 April 2002 | |
| mpc_name | (55576) Amycus | |
| alt_names | ||
| pronounced | ||
| adjectives | Amycian | |
| named_after | Amycus | |
| mp_category | Centaur | |
| orbit_ref | ||
| epoch | 13 January 2016 (JD 2457400.5) | |
| aphelion | 35.019 AU (Q) | |
| perihelion | 15.178 AU (q) | |
| semimajor | 25.098 AU (a) | |
| eccentricity | 0.39526 (e) | |
| period | 125.74 yr (45926.7 d) | |
| inclination | 13.352° (i) | |
| asc_node | 315.45° (Ω) | |
| mean_anomaly | 37.041° (M) | |
| arg_peri | 239.17° (ω) | |
| dimensions | ||
| albedo | ~ 0.18 | |
| spectral_type | {{Ubl | |
| B–V {{ | }} | |
| V–R {{ | }} | |
| magnitude | ~ 20 | |
| abs_magnitude | 7.8 | |
| mean_motion | / day (n) | |
| rotation | 9.76 h | |
| observation_arc | 7204 days (19.72 yr) | |
| uncertainty | 2 | |
| jupiter_moid | 9.92261 AU | |
| tisserand | 4.133 |
| B–V
| V–R
55576 Amycus is a centaur discovered on 8 April 2002 by the NEAT at Palomar.
The minor planet was named for Amycus, a male centaur in Greek mythology.
It came to perihelion in February 2003. Data from the Spitzer Space Telescope gave a diameter of .
A low probability asteroid occultation of star UCAC2 17967364 with an apparent magnitude of +13.8 was possible on 11 February 2009. Another such event involving a star with an apparent magnitude of +12.9 occurred on 10 April 2014 at about 10:46 Universal Time, visible for observers in the southwest US and western Mexico.
Near 3:4 resonance of Uranus
Amycus 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.
References
|access-date=12 April 2016}}
|access-date= 26 September 2019}}
|author-link=Marc W. Buie |access-date=2009-02-28 |archive-url=https://web.archive.org/web/20110604032846/http://www.boulder.swri.edu/~buie/kbo/astrom/55576.html |archive-date=4 June 2011 |url-status=dead
|access-date=2009-02-28 |archive-url= https://web.archive.org/web/20090213132019/http://johnstonsarchive.net/astro/tnoslist.html |archive-date= 13 February 2009 |url-status= live}}
|access-date=2009-03-15 |archive-url=https://web.archive.org/web/20110526231319/http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.3.0&n=Amycus |archive-date=2011-05-26 |url-status=dead}}
|access-date=2009-12-28}}
|doi-access= free
References
- Noah Webster (1884) ''A Practical Dictionary of the English Language''
- (2021). "A statistical review of light curves and the prevalence of contact binaries in the Kuiper Belt". Icarus.
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