38628 Huya
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| Discovery A | |
|---|---|
| Discoverer | Ignacio Ferrin |
| Discovery date | March 10, 2000 |
| Alternate designations B |
2000 EB173 |
| Category | Trans-Neptunian object |
| Orbital elements C | |
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| Eccentricity (e) | 0.2810 |
| Semi-major axis (a) | 39.7224 AU |
| Perihelion (q) | 28.5591 AU |
| Aphelion (Q) | 50.8856 AU |
| Orbital period (P) | 250.3576 y |
| Mean orbital speed | |
| Inclination (i) | 15.4519 ° |
| Longitude of the ascending node (Ω) |
169.2540 ° |
| Argument of perihelion (ω) |
67.2515 ° |
| Mean anomaly (M) | 345.9515 ° |
| Physical characteristics D | |
| Dimensions | 480±50 km |
| Mass | ?×10? kg |
| Density | ? g/cm³ |
| Surface gravity | ? m/s² |
| Escape velocity | ? km/s |
| Rotation period | ? d |
| Spectral class | (moderately red) B-V=1.00; V-R=0.65[1] |
| Absolute magnitude | 4.70 |
| Albedo (geometric) | 0.11±0.02[2] |
| Mean surface temperature |
~? K |
38628 Huya (original provisional designation: 2000 EB173) 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. It was assigned the name Huya, after a South American rain god, in August 2003 by the International Astronomical Union (IAU).
At the time of its discovery, Huya was the biggest and brightest TNO yet found. A plutino with a 3:2 resonant orbit with Neptune, the object was found using data collected by at the CIDA Observatory in Venezuela. It is estimated to be 480km in diameter.
The object has a red-sloped reflectance spectrum, suggesting a surface rich in organic material such as tholins.
[edit] References
- ^ TNO and Centaur Colors. Retrieved on 2006-11-08.
- ^ Stansberry (2005). TNO/Centaur diameters and albedos. Retrieved on 2006-11-08.
[edit] External links
- Orbital simulation from JPL (Java)
- 37th DPS: Albedos, Diameters (and a Density) of Kuiper Belt and Centaur Objects
- Discovery of a bright Trans-Neptunian Object (Yale)
- From the Rain Forest to Planet Huya
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| Plutinos : Pluto* | 1993 RO | 1993 RP | 1993 SB | 1993 SC | 1994 TB | 1995 QZ9 | 1996 SZ4 | 1996 TP66 | 38083 Rhadamanthus | 1999 TC36 | 38628 Huya | 28978 Ixion | 2002 VR128 | 2003 VS2 | 90482 Orcus | Unnumbered: 2003 AZ84
Cubewanos: 1992 QB1 | 1994 GV9 | 1994 JQ1 | 1994 VK8 | 1996 TO66 | 58534 Logos| 1998 WW31 | 19521 Chaos | 53311 Deucalion | 20000 Varuna | 2001 KP77 | 2002 AW197 | 50000 Quaoar | 2002 MS4 | 2002 TX300 | 2002 UX25 | 2003 EL61 | 2004 GV9| 2005 FY9 | Unnumbered: | 2003 MW12 | 2003 QW90 | 2005 RN43 Twotinos: 2002 WC19 | 1996 TR66 | Unnumbered: 1998 SM165 | 1997 SZ10 | 1999 RB216 | 2000 JG81 Scattered disc objects: Eris* | 1995 TL8 | 1996 GQ21 | 1996 TL66 | 1999 DE9 | 2000 OO67 | 2000 OM67 | 2001 KC77 | 2001 UR163 | 2002 CY224 | 2002 GX32 | 2002 RP120 | 2002 TC302 | 90377 Sedna** Unnumbered: 2000 CR105 | 2000 EE173 | 2004 XR190 | 2005 TN74 Unclassified Objects : 1994 JS | 1994 JR1 | 1995 DA2 | 1995 SM55 | 1996 TQ66 | 1997 CR29 | 1997 CS29 | 1997 CU29 | 1997 QJ4 | 1998 HJ151 | 1998 HK151 | 1998 HP151 | 1998 HM151 | 1998 KR65 | 1998 SM165 | 1998 SN1651998 US43 | 1998 VG44 | 1998 WW24 | 1998 WA31 | 1998 WU31 | 1998 WA25 | 1999 CP133 | 1999 CL158 | 1999 CC158 | 1999 DF9 | 1999 HT11 | 1999 HB12 | 1999 HC12 | 1999 KR16 | 1999 OY3 Natural satellites : Charon (Pluto) | Hydra (Pluto) | Nix (Pluto) | Dysnomia (Eris) | S/2000 (1998 WW31) 1 | S/2005 (2003 EL61) 1 | S/2005 (2003 EL61) 2 | (58534) Logos I Zoe |
| * - Also classified as a dwarf planet ** - Currently classified as an SDO, though may be part of the Inner Oort Cloud |
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| Kuiper belt: Orcus | Pluto (Charon) | Ixion | 2002 UX25 | Varuna | 2002 TX300 | 2003 EL61 | Quaoar | 2005 FY9 | 2002 AW197 |
| Scattered disc: 2002 TC302 | Eris | 2004 XR190 | Sedna |
| See also Triton, astronomical objects and the solar system's list of objects, sorted by radius or mass. For pronunciation, see: Centaur and TNO pronunciation. |
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| Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud) |
| For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
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| The Sun · Mercury · Venus · Earth · Mars · Ceres · Jupiter · Saturn · Uranus · Neptune · Pluto · Eris |
| Planets · Dwarf planets · Moons: Terran · Martian · Asteroidal · Jovian · Saturnian · Uranian · Neptunian · Plutonian · Eridian |
| Small bodies: Meteoroids · Asteroids (Asteroid belt) · Centaurs · TNOs (Kuiper belt/Scattered disc) · Comets (Oort cloud) |
| See also astronomical objects and the solar system's list of objects, sorted by radius or mass. |
