55576 Amycus
{{Use dmy dates|date=April 2020}}
{{Infobox planet
| minorplanet = yes
| background = #C7FF8F
| name = 55576 Amycus
| symbol = 24px (astrological)
| image = 55576 Amycus.tiff
| image_scale =
| caption = Orbital diagram (top view)
| discoverer = NEAT
| discovery_site = Palomar
| discovered = 8 April 2002
| mpc_name = (55576) Amycus
| alt_names = {{mp|2002 GB|10}}
| pronounced = {{IPAc-en|ˈ|æ|m|ᵻ|k|ə|s}}Noah Webster (1884) A Practical Dictionary of the English Language
| adjectives = Amycian {{IPAc-en|@|ˈ|m|I|s|i|ə|n}}
| named_after = Amycus
| mp_category = Centaur
| epoch = 13 January 2016 (JD 2457400.5)
| aphelion = {{Convert|35.019|AU|Tm|abbr=on|lk=on}} (Q)
| perihelion = {{Convert|15.178|AU|Tm|abbr=on}} (q)
| semimajor = {{Convert|25.098|AU|Tm|abbr=on}} (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)
| satellites =
| dimensions = {{Val|76.3|12.5|u=km}}
| mass =
| density =
| spectral_type = {{Ubl
| B–V {{=}} {{val|1.111|0.034}}
| V–R {{=}} {{val|0.705|0.032}}
}}
| mean_motion = {{Deg2DMS|0.0078386|sup=ms}} / day (n)
| rotation = {{Convert|9.76|h|d|abbr=on|lk=on}}
| observation_arc = 7204 days (19.72 yr)
| uncertainty = 2
| jupiter_moid = {{Convert|9.92261|AU|Tm|abbr=on}}
| tisserand = 4.133
}}
55576 Amycus {{IPAc-en|ˈ|æ|m|ᵻ|k|ə|s}} 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 {{Val|76.3|12.5|u=km}}.
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 (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.{{Cite journal |last1=Showalter |first1=Mark R. |last2=Benecchi |first2=Susan D. |last3=Buie |first3=Marc W. |last4=Grundy |first4=William M. |last5=Keane |first5=James T. |last6=Lisse |first6=Carey M. |last7=Olkin |first7=Cathy B. |last8=Porter |first8=Simon B. |last9=Robbins |first9=Stuart J. |last10=Singer |first10=Kelsi N. |last11=Verbiscer |first11=Anne J. |last12=Weaver |first12=Harold A. |last13=Zangari |first13=Amanda M. |last14=Hamilton |first14=Douglas P. |last15=Kaufmann |first15=David E. |date=2021 |title=A statistical review of light curves and the prevalence of contact binaries in the Kuiper Belt |journal=Icarus |language=en |volume=356 |pages=114098 |doi=10.1016/j.icarus.2020.114098|s2cid=225284888 |doi-access=free |arxiv=2105.03543 |bibcode=2021Icar..35614098S }}
Image:AmycusAnim.gif) of Amycus.]]
See also
- {{Section link|List of centaurs (small Solar System bodies)|55576}}
- List of Solar System objects by size
References
{{reflist
|refs=
|type= 2007-08-15 last obs
|title=JPL Small-Body Database Browser: 55576 Amycus (2002 GB10)
|url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=55576
|access-date=12 April 2016}}
|first1 = O. R. |last1 = Hainaut
|first2 = H. |last2 = Boehnhardt
|first3 = S. |last3 = Protopapa
|date = October 2012
|title = Colours of minor bodies in the outer solar system. II. A statistical analysis revisited
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012A&A...546A.115H
|journal = Astronomy and Astrophysics
|volume = 546
|page = 20
|bibcode = 2012A&A...546A.115H
|doi = 10.1051/0004-6361/201219566
|arxiv = 1209.1896
|s2cid = 54776793
|access-date= 26 September 2019}}
|author=Marc W. Buie
|author-link=Marc W. Buie
|type=2003-06-22 using 73 of 81 observations
|title=Orbit Fit and Astrometric record for 55576
|publisher=SwRI (Space Science Department)
|url=http://www.boulder.swri.edu/~buie/kbo/astrom/55576.html
|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
}}
|title=Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope
|author=John Stansberry
|author2=Will Grundy
|author3=Mike Brown
|author4=Dale Cruikshank
|author5=John Spencer
|author6=David Trilling
|author7=Jean-Luc Margot
|eprint=astro-ph/0702538
|date=2007-02-20}}
|date=22 August 2008
|title=List of Known Trans-Neptunian Objects
|publisher=Johnston's Archive
|author=Wm. Robert Johnston
|url=http://www.johnstonsarchive.net/astro/tnoslist.html
|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}}
|title=AstDys (55576) Amycus Ephemerides
|publisher=Department of Mathematics, University of Pisa, Italy
|url=https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=Amycus
|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}}
|date=2009-01-08
|title=Star occultation by asteroid 55576 Amycus
|publisher=IOTA (International Occultation Timing Association)
|author=Steve Preston
|url=http://www.asteroidoccultation.com/2009_02/0211_55576_17253_Summary.txt
|access-date=2009-12-28}}
{{Dead link|date=October 2010|bot=H3llBot}}
|title=Bright Star Occultations by TNOs in 2014. J. Occultation Astronomy 2014-1.
|date=2013
|publisher=IOTA (International Occultation Timing Association)
|author=Hans-J. Bode
|author2=Filipe Braga Ribas
|author3=B. Sicardy}}
|last=Horner |first= J.
|author2=Evans, N.W.
|author3=Bailey, M. E.
|title=Simulations of the Population of Centaurs I: The Bulk Statistics
|date=2004
|arxiv=astro-ph/0407400
|doi=10.1111/j.1365-2966.2004.08240.x
|volume=354
|journal=Monthly Notices of the Royal Astronomical Society
|issue= 3
|pages=798–810
|doi-access= free
|bibcode=2004MNRAS.354..798H|s2cid= 16002759
}}
}}
External links
- {{JPL small body|id=55576}}
{{Minor planets navigator| |number=55576 | }}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:Amycus}}