(15874) 1996 TL66

(15874) 1996 TL66
Discovery[1]
Discovered byD. C. Jewitt
J. X. Luu
J. Chen
C. A. Trujillo
Discovery siteMauna Kea Obs.
Discovery date9 October 1996
Designations
(15874) 1996 TL66
1996 TL66
TNO[2] · SDO[3]
distant[4]
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 2
Observation arc5883 days (16.11 yr)
Aphelion131.75 AU (19.710 Tm)
Perihelion35.057 AU (5.2445 Tm)
83.403 AU (12.4769 Tm)
Eccentricity0.57967
761.70 yr (278211 d)
6.8505°
0° 0m 4.658s / day
Inclination24.006°
217.82°
184.79°
Physical characteristics
339±20 km[5]
575±115 km[6]
12 h (0.50 d)[2]
0.110+0.021
−0.015[5]
0.035+0.02
−0.01[6]
B–V = 0.687±0.072[7]
V–R = 0.369±0.052[7]
21[8]
5.4[2]

(15874) 1996 TL66 (provisional designation 1996 TL66) is a trans-Neptunian object of the scattered disc orbiting in the outermost region of the Solar System.[2][3]

The Spitzer Space Telescope has estimated this object to be about 575 kilometres (357 mi) in diameter,[6] but 2012 estimates from the Herschel Space Observatory estimate the diameter as closer to 339 kilometres (211 mi).[5] It is not a detached object, since its perihelion (closest approach to the Sun) is under the influence of Neptune.[3] Light-curve-amplitude analysis suggests that it is a spheroid.[9] Tancredi presents "in the form of a decision tree, the set of questions to be considered in order to classify an object as an icy 'dwarf planet'." They find that (15874) 1996 TL66 is very probably a dwarf planet.[10] Mike Brown's website, using a radiometrically determined diameter of 344 kilometres (214 mi), lists it as a possible dwarf planet.[11]

  1. ^ Cite error: The named reference MPEC1997-B18 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Buie was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference MPC was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference TNOsCool4 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference spitzer was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Hainaut-2012 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference AstDys was invoked but never defined (see the help page).
  9. ^ Tancredi, G., & Favre, S. (2008) Which are the dwarfs in the Solar System?. Depto. Astronomía, Fac. Ciencias, Montevideo, Uruguay; Observatorio Astronómico Los Molinos, MEC, Uruguay. Retrieved 10-08-2011
  10. ^ Tancredi, G. (2010). "Physical and dynamical characteristics of icy "dwarf planets" (plutoids)". Icy Bodies of the Solar System: Proceedings IAU Symposium No. 263, 2009. 263: 173. Bibcode:2010IAUS..263..173T. doi:10.1017/S1743921310001717.
  11. ^ 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 2014-06-16.