38083 Rhadamanthus

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38083 Rhadamanthus
Discovered by Deep Ecliptic Survey
Discovery date 17 April 1999
MPC designation 38083 Rhadamanthus
Pronunciation /ˌrædəˈmænθəs/ RAD-ə-MAN-thəs
Named after
1999 HX11
TNO (plutino?)[1][2]
Adjectives Rhadamanth(e/i)an, Rhadamanthine
Orbital characteristics[1][3]
Epoch 31 December 2006 (JD 2454100.5)
Aphelion 45.105 AU (6747.594 Gm)
Perihelion 33.205 AU (4967.394 Gm)
39.155 AU (5857.494 Gm)
Eccentricity 0.152
245.01 a (89,490.745 d)
4.73 km/s
Inclination 12.731°
Physical characteristics
Dimensions 87–276 km[4]H
Temperature ~44 K

38083 Rhadamanthus is a trans-Neptunian object (TNO). It was discovered in 1999 by the Deep Ecliptic Survey. It was originally thought to be a plutino but no longer is.[1][2]

Discovery and naming[edit]

Rhadamanthus was discovered on 17 April 1999 by the Deep Ecliptic Survey.

Rhadamanthus is named after the Greek mythological figure. The name was announced in the circular of the Minor Planet Center of 24 July 2002, which stated "Rhadamanthus was a son of Zeus and Europa. Because of his just and upright life, after death he was appointed a judge of the dead and the ruler of Elysium, a blissfully beautiful area of the Underworld where those favored by the gods spent their life after death. The name was suggested by E. K. Elliot."[5]


  1. ^ a b c Marc W. Buie (7 June 2008). "Orbit Fit and Astrometric record for 38083". SwRI (Space Science Department). Retrieved 2008-07-17. 
  2. ^ a b "MPEC 2006-X45 : Distant Minor Planets". Minor Planet Center & Tamkin Foundation Computer Network. 21 December 2006. Archived from the original on 28 August 2008. Retrieved 2008-07-18. (older provisional Plutino listing)
  3. ^ a b "JPL Small-Body Database Browser: 38083 Rhadamanthus (1999 HX11)". 2008-06-07 last obs. Retrieved 2008-07-17.  Check date values in: |date= (help)
  4. ^ Rhadamanthus
  5. ^ "Minor Planet Circulars/Minor Planets and Comets, MPC-46112" (PDF). Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Retrieved 2015-04-19. 

External links[edit]