(15836) 1995 DA2

From Wikipedia, the free encyclopedia
Jump to: navigation, search
(15836) 1995 DA2
Discovery
Discovered by David C. Jewitt, Jane X. Luu
Discovery date February 24, 1995
Designations
MPC designation (15836) 1995 DA2
none
Minor planet category TNO
3:4 resonance[1][2]
Orbital characteristics
Aphelion 39.092 AU
Perihelion 33.750 AU
36.421 AU
Eccentricity 0.073
40.9°
Inclination 6.6°
127.5°
336.1°
Physical characteristics
Dimensions 106 km[3]
Albedo 0.09 (assumed)
8.1

(15836) 1995 DA2, also written as (15836) 1995 DA2, is a trans-Neptunian object. It was discovered on February 24, 1995 by David C. Jewitt and Jane X. Luu at the Mauna Kea Observatory, Hawaii.

Resonance[edit]

It is in a 3:4 resonance with the planet Neptune.[1][2] The Neptune 3:4 mean-motion resonance keeps the object more than 8 AU from Neptune over a 14000-year period.[4][5]

The 3:4 resonance libration of 1995 DA2. Neptune is the white (stationary) dot at 5 o'clock. Uranus is blue, Saturn yellow, and Jupiter red.

References[edit]

  1. ^ a b Marc W. Buie (7 February 2002). "Orbit Fit and Astrometric record for 15836". SwRI (Space Science Department). Retrieved 2009-01-29. 
  2. ^ a b "MPEC 2009-A63 :Distant Minor Planets (2009 JAN. 29.0 TT)". Minor Planet Center. 13 January 2009. Retrieved 2009-03-01. 
  3. ^ Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 13 February 2009. Retrieved 2009-01-29. 
  4. ^ "MPEC 2001-D23". Minor Planet Center. 21 February 2001. Retrieved 2009-01-30. 
  5. ^ "MPEC 1996-A11: 1995 DA2". Minor Planet Center. 6 January 1996. Retrieved 2009-01-30.