(120348) 2004 TY364

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(120348) 2004 TY364
Discovered by Michael E. Brown,
Chad Trujillo,
David L. Rabinowitz
Discovery date October 3, 2004
MPC designation (120348) 2004 TY364
Minor planet category TNO
Orbital characteristics
Aphelion 41.269 AU
Perihelion 36.214 AU
38.742 AU
Eccentricity 0.065
Inclination 24.8°
Physical characteristics
Dimensions 554±?? km[citation needed]
Albedo 0.09 (assumed)

(120348) 2004 TY364, also written as (120348) 2004 TY364, is a trans-Neptunian object that resides in the Kuiper belt. It was discovered by Michael E. Brown, Chad Trujillo and David L. Rabinowitz on October 3, 2004 at the Palomar Observatory.

Since it has an absolute magnitude of 4.5, it is a likely dwarf planet, and Michael E. Brown's website lists it as one.[2] However, light curve analysis has questioned whether it would truly qualify as a dwarf planet.[3]

It is currently 39.5 AU from the Sun.[1]


  1. ^ a b "AstDys (120348) 2004TY364 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-12-10. 
  2. ^ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 2011-08-25. 
  3. ^ 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?)