5335 Damocles

(5335) Damocles
Discovery
Discovered byR. H. McNaught
Discovery siteSiding Spring Obs.
Discovery date18 February 1991
Designations
(5335) Damocles
Pronunciation/ˈdæməkliːz/[1]
Named after
Damocles (Greek mythology)[2]
1991 DA
distant [3]
centaur [4] · damocloid [5]
AdjectivesDamoclean (/dæməˈkliːən/)[6]
Symbol (astrological)
Orbital characteristics [4]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 4
Observation arc1.51 yr (551 days)
Aphelion22.078 AU
Perihelion1.5741 AU
11.826 AU
Eccentricity0.8669
40.67 Jyr (14,854 days)
236.35°
0° 1m 27.12s / day
Inclination61.875°
314.14°
191.26°
Mars MOID0.05787 AU[3]
TJupiter1.149
Physical characteristics
Dimensions~ 10 km[7]
26.56[8]
13.3[4][8]

(5335) Damocles /ˈdæməkliːz/, provisional designation 1991 DA, is a centaur and the namesake of the damocloids, a group of minor planets which may be inactive nuclei of the Halley-type and long-period comets. It was discovered on 18 February 1991, by Australian astronomer Robert McNaught at Siding Spring Observatory in Australia. It is named after Damocles, a figure of Greek mythology.[2]

  1. ^ Webster, Noah (1884). A Practical Dictionary of the English Language.
  2. ^ a b Cite error: The named reference Schmadel2007 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference MPC-Damocles was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Nakamura-Damocloid-list was invoked but never defined (see the help page).
  6. ^ Oxford English Dictionary
  7. ^ Cite error: The named reference johnston2011 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference AstDyS was invoked but never defined (see the help page).