38628 Huya

Infobox Planet
bgcolour=#FFFFC0 | discovery=yes | physical_characteristics=yes
name=38628 Huya
discoverer=Ignacio Ferrin
discovered=March 10, 2000
mp_name=38628 Huya
alt_names=mp|2000 EB|173
mp_category=TNO
Plutinocite web
date=2006 Dec. 21
title=MPEC 2006-X45 : Distant Minor Planets
publisher=Minor Planet Center & Tamkin Foundation Computer Network
url=http://cfa-www.harvard.edu/iau/mpec/K06/K06X45.html
accessdate=2008-07-18]
orbit_ref = cite web
author=Marc W. Buie
date=2007/04/22
title=Orbit Fit and Astrometric record for 38628
publisher=SwRI (Space Science Department)
url=http://www.boulder.swri.edu/~buie/kbo/astrom/38628.html
accessdate=2008-07-17] cite web
date=2007-05-12 last obs
title=JPL Small-Body Database Browser: 38628 Huya (2000 EB173)
url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Huya
accessdate=2008-07-17]
epoch=December 31, 2006 (JD 2454100.5)
semimajor=5948.340 Gm (39.762 AU)
perihelion=4269.292 Gm (28.538 AU)
aphelion=7627.387 Gm (50.986 AU)
eccentricity=0.282
period=91580.694 d (250.73 a)
inclination=15.463°
asc_node=169.296°
arg_peri=67.637°
mean_anomaly=348.506°
avg_speed=4.63 km/s
dimensions=480±50 km
532±25 kmcite web
title=Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope
author=John Stansberry, Will Grundy, Mike Brown, Dale Cruikshank, John Spencer, David Trilling, Jean-Luc Margot
work=University of Arizona, Lowell Observatory, California Institute of Technology, NASA Ames Research Center, Southwest Research Institute, Cornell University
url=http://arxiv.org/abs/astro-ph/0702538v2
year=2007
accessdate=2008-07-24]
mass=8.3–16e|19? kg
density=2.0? g/cm³
surface_grav=0.12–0.15? m/s²
escape_velocity=0.23–0.28? km/s
sidereal_day=? d
spectral_type=(moderately red) B-V=1.00; V-R=0.65 [cite web|url=http://www.psi.edu/pds/asteroid/EAR_A_COMPIL_3_TNO_CEN_COLOR_V3_0/data/tnocencol.tab |title= TNO and Centaur Colors |accessdate=2006-11-08]
magnitude = 19.3 (opposition)
abs_magnitude=4.7
albedo=0.11±0.02cite web|url=http://www.johnstonsarchive.net/astro/tnodiam.html |title=TNO/Centaur diameters and albedos |accessdate=2006-11-08 |last=Stansberry |date=2005]
angular_size = 0.024" (max) [Huya Angular Size @ May 2015 Opposition: 480km dia / (27.5543AU * 149 597 870km) * 206265 = 0.024"]
single_temperature=~44 K 38628 Huya (pronEng|huːˈjɑː "hoo-YAH," provisional designation mp|2000 EB|173) is a trans-Neptunian object (TNO). It was discovered in March 2000 by Ignacio Ferrin and announced on 24 October 2000. It is classified as a plutino with a 2:3 mean motion resonance with Neptune. It was assigned the name Huya, after "Juyá," the Wayuu rain god, in August 2003 by the International Astronomical Union (IAU).

ize

At the time of its discovery, Huya was the biggest and brightest TNO yet found. It was found using data collected by at the CIDA Observatory in Venezuela. It is estimated to be about 530 km in diameter.

urface

The object has a red-sloped reflectance spectrum, suggesting a surface rich in organic material such as tholins.cite web
url = http://adsabs.harvard.edu/abs/2001astro.ph..5434L
title = NICS-TNG infrared spectroscopy of trans-neptunian objects 2000 EB173 and 2000 WR106
accessdate = 2007-10-17
last = Licandro
date = 07/2001
publisher = Astronomy and Astrophysics, v.373, p.L29-L32 (2001)]

Orbit

Given the long orbit that TNOs have around the sun, Huya comes to opposition in early May of each year at an apparent magnitude of 19.3.

References

External links

* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Huya;orb=1;view=Far Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=Huya Ephemeris]
* [http://www.aas.org/publications/baas/v37n3/dps2005/446.htm 37th DPS: Albedos, Diameters (and a Density) of Kuiper Belt and Centaur Objects]
* [http://www.space.com/scienceastronomy/solarsystem/plutino_001024.html Planet 10? Tiny 'Plutino' Almost Qualifies]
* [http://hepwww.physics.yale.edu/www_info/astro/papers/eb173_paper_rev2.html Discovery of a bright Trans-Neptunian Object (Yale)]
* [http://www.igorinternational.com/blog/2003/09/from-the-rain-forest-to-planet-huya From the Rain Forest to Planet Huya]