(202421) 2005 UQ513
From Wikipedia, the free encyclopedia
|
Discovery[2]
|
|
|---|---|
| Discovered by | M. E. Brown D. L. Rabinowitz C. A. Trujillo |
| Discovery date | October 21, 2005[1] |
|
Designations
|
|
| MPC designation | (202421) 2005 UQ513 |
| Minor planet category |
Cubewano (MPC)[3] ScatExt (DES)[4] |
| Epoch March 14, 2012 (JD 2456000.5) | |
| Aphelion | 49.769 AU (Q) |
| Perihelion | 37.321 AU (q) |
| Semi-major axis | 43.545 AU (a) |
| Eccentricity | 0.14293 |
| Orbital period | 287.35 yr (104,955 d) |
| Mean anomaly | 221.02° (M) |
| Inclination | 25.7201° |
| Longitude of ascending node | 307.7905° |
| Argument of perihelion | 220.01° |
|
Physical characteristics
|
|
| Dimensions | 558–1250 km[1][6] 926 km[7] (assuming an albedo of 0.09) 919 km[8] 878 km[9] 748 km[10] 513 km[11] |
| Apparent magnitude | 20.8[12] |
| Absolute magnitude (H) | 3.4[1] |
(202421) 2005 UQ513, also written as 2005 UQ513, is a cubewano with an absolute magnitude of 3.4.[1] Mike Brown's website lists it as a highly likely dwarf planet.[10] 2005 UQ513 shows signs of weak water ice.[13] Like Quaoar,[14] it has a very[14] red spectrum,[15][16] which indicates that its surface probably contains a lot of complex, processed organic molecules.[15] Its light curve shows variations of Δm=0.3 mag, but no period has been determined.[16]
Contents |
[edit] Classification
2005 UQ513 has a perihelion of 37.3 AU.[1] The Minor Planet Center (MPC) classifies it as a cubewano[3] while the Deep Ecliptic Survey (DES) classifies it as ScatExt (scattered-extended).[4] Although dynamically it would have been a good candidate to be a member of the Haumea collisional family, given its red spectrum it is not.[15][16]
[edit] Distance
It is currently 48.6 AU from the Sun.[12] It will come to perihelion around 2123.[1]
It has been observed 59 times over 12 oppositions with precovery images back to 1990.[1]
[edit] References
- ^ a b c d e f g h "JPL Small-Body Database Browser: (2005 UQ513)". 2011-12-26 last obs., 12 opp. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005UQ513. Retrieved 2012-05-05.
- ^ "MPEC 2007-R02 : 2003 UY413, 2003 UZ413, 2004 NT33, 2005 CA79, 2005 CB79, 2005 UQ513". IAU Minor Planet Center. 2007-09-01. http://adsabs.harvard.edu/abs/2007MPEC....R...02B. Retrieved 2009-08-26.
- ^ a b "MPEC 2010-S44 : DISTANT MINOR PLANETS (2010 OCT. 11.0 TT)". IAU Minor Planet Center. 2010-09-25. http://minorplanetcenter.org/mpec/K10/K10S44.html. Retrieved 2011-01-26.
- ^ a b Marc W. Buie (2012/05/06 using 59 observations). "Orbit Fit and Astrometric record for 202421". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/202421.html. Retrieved 2012-05-05.
- ^ "AstDys (202421) 2005UQ513 Orbital information". Department of Mathematics, University of Pisa, Italy. http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.1&n=2005UQ513. Retrieved 2012-05-05.
- ^ "Absolute Magnitude (H)". NASA/JPL. http://neo.jpl.nasa.gov/glossary/h.html. Retrieved 2012-05-05.
- ^ Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html. Retrieved 2012-05-05.
- ^ Wm. Robert Johnston (8 April 2012). "List of Known Trans-Neptunian Objects". Johnston's Archive. http://www.johnstonsarchive.net/astro/tnoslist.html. Retrieved 2012-05-05.
- ^ Tancredi, G. (2009). Part V Icy Dwarf Planets and TNOs - Physical and dynamical characteristics of icy “dwarf planets” (plutoids)
- ^ a b Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. http://www.gps.caltech.edu/~mbrown/dps.html. Retrieved 2012-05-05.
- ^ "if H=4.1 ~513 km;assumed albedo=0.15?". Major News About Minor Objects. 2007-09-01. http://www.hohmanntransfer.com/mn/07/07244_0901.htm. Retrieved 2009-03-26.
- ^ a b "AstDys (202421) 2005UQ513 Ephemerides". Department of Mathematics, University of Pisa, Italy. http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.3.0&n=2005UQ513. Retrieved 2012-05-05.
- ^ Ragozzine, D. & Brown, M. E. (2007). "Candidate Members and Age Estimate of the Family of Kuiper Belt Object 2003 EL61". The Astronomical Journal 134 (6): 2160–2167. arXiv:0709.0328. Bibcode 2007AJ....134.2160R. DOI:10.1086/522334. http://www.iop.org/EJ/article/1538-3881/134/6/2160/205894.html. Retrieved 2009-12-05.
- ^ a b Trujillo, C. A., Sheppard, S. S., & Schaller E. L. (2011). A Photometric System for Detection of Water and Methane Ices on Kuiper Belt Objects
- ^ a b c Pinilla-Alonso, N., Licandro, J., & Lorenzi, V. (2008). Visible spectroscopy in the neighborhood of 2003 EL61 (Haumea)
- ^ a b c Snodgrass, C., Carry, B., Dumas, C., & Hainaut, O. (2009). Characterisation of candidate members of (136108) Haumea’s family
[edit] External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- (202421) 2005 UQ513 Precovery Images
|
||||||||||||||||||||
