(120348) 2004 TY364

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(120348) 2004 TY364
Discovery
Discovered by Michael E. Brown,
Chad Trujillo,
David L. Rabinowitz
Discovery date October 3, 2004
Designations
MPC designation (120348) 2004 TY364
Minor planet category TNO:
Cubewano[1]
SCATEXTD[2]
Other[3][4]
Orbital characteristics[5]
Epoch JD 2457000.5 (9 December 2014)
Aphelion 41.490 AU
Perihelion 36.255 AU
38.87 AU
Eccentricity 0.06734
242.37 yr (88,525 d)
266.50°
Inclination 24.8509°
140.6256°
357.57°
Physical characteristics
Dimensions 554 km[3]
Albedo 0.08 (expected from theory)[6]
20.4[7]
4.5[5]

(120348) 2004 TY364, also written as (120348) 2004 TY364, is a trans-Neptunian object. It is an inner classical Kuiper belt object in the definition by Gladman, Marsden, and Van Laerhoven (e<0.24).[1] Its inclination of almost 25 degrees disqualifies it as such in Marc Buie's definition[specify].[2] It is also not listed as a scattered disc object by the Minor Planet Center.[8] It was discovered by Michael E. Brown, Chad Trujillo and David L. Rabinowitz on October 3, 2004 at the Palomar Observatory.

With an absolute magnitude of 4.5, it is likely a dwarf planet.[6] However, light curve analysis has questioned whether it really is one.[9]

As of 2014, it is 39.2 AU from the Sun.[7]

References[edit]

  1. ^ a b Nomenclature in the outer Solar System
  2. ^ a b Marc W. Buie. "Orbit Fit and Astrometric record for 120348" (last observation: 2005-08-31 using 20 of 21 observations over 22 years). SwRI (Space Science Department). Retrieved 2014-11-13. 
  3. ^ a b http://www.johnstonsarchive.net/astro/tnoslist.html
  4. ^ "MPEC 2010-S44 :Distant Minor Planets (2010 OCT. 11.0 TT)". IAU Minor Planet Center. 2010-09-25. Retrieved 2014-11-16. 
  5. ^ a b "JPL Small-Body Database Browser: 120348 (2004 TY364)" (2005-09-01 last obs; arc: 22.13 years). Retrieved 2014-11-13. 
  6. ^ a b Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 2011-08-25. 
  7. ^ a b "AstDys (120348) 2004TY364 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-12-10. 
  8. ^ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2014-11-13. 
  9. ^ Gonzalo Tancredi and Sofía Favre (13 October 2008). "Dwarf Planet & Plutoid Headquarters". Portal Uruguayo de Astronomía. Retrieved 2010-09-22.  (Which are the dwarfs in the Solar System?)