2010 RE64

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2010 RE64
Discovered by D. Rabinowitz
M. E. Schwamb
S. Tourtellotte
Discovery site La Silla Obs.
(first observed only)
Discovery date 2010-09-09
MPC designation 2010 RE64
TNO / SDO[2]
Orbital characteristics[3]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 5
Observation arc 1504 days (4.12 yr)
Aphelion 94.803 AU
Perihelion 36.074 AU
65.438 AU
Eccentricity 0.44874
529.37 yr (193351 d)
0° 0m 6.703s /day
Inclination 13.541°
Physical characteristics
Mean diameter
370–820 km[3][4]
612 km[5][6]

2010 RE64 is a trans-Neptunian object in the scattered disc located in the outermost region of the Solar System, approximately 600 kilometers in diameter. Mike Brown's website lists it as a highly likely dwarf planet.[8]


It has an observation arc of 407 days,[3] and there are currently no known precovery images to help refine its orbit. It is currently 53.7 AU from the Sun.[7] Based on JPL's best-fit solution for the orbit, it reached aphelion around 1829. It is estimated to come to perihelion around 2079.[3]

Assuming a generic trans-Neptunian albedo of 0.09, it is about 612 kilometres (380 mi) in diameter.[5] However, since the true albedo is unknown and it has an absolute magnitude of 4.3,[3] it could easily be from about 370 to 820 km in diameter.[4]


  1. ^ "MPEC 2010-T36 : 2010 RE64". IAU Minor Planet Center. 2010-10-06. Retrieved 2011-07-06. 
  2. ^ Marc W. Buie. "Orbit Fit and Astrometric record for 10RE64" (last observation: 2011-10-21 using 16 of 16 observations over 1.1 yr). SwRI (Space Science Department). Retrieved 2009-12-03. 
  3. ^ a b c d e f "JPL Small-Body Database Browser: (2010 RE64)" (last observation: 2011-10-21; arc: 1.11 years). Retrieved 31 March 2016. 
  4. ^ a b "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 26 November 2009. Retrieved 2009-12-06. 
  5. ^ a b Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). Archived from the original on 2011-07-23. Retrieved 2010-12-03. 
  6. ^ Assuming an albedo of 0.09
  7. ^ a b "AstDyS 2010 RE64 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2014-03-28. 
  8. ^ Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Archived from the original on 2011-10-18. Retrieved 2011-08-25. 

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