Laomedeia

Laomedeia
Laomedeia imaged by the Very Large Telescope's FORS1 imager in September 2002
Discovery[1][2]
Discovered by
Discovery dateAugust 13, 2002
Designations
Designation
Neptune XII
Pronunciation/ˌleɪəməˈdiːə/
Named after
Λαομέδεια Lāomedeia
S/2002 N 3
AdjectivesLaomedeian[3]
Orbital characteristics[4]
Epoch 2003 Jun. 10.00 TT
23,613,000 km
Eccentricity0.3969
3171.33 days
(8.68 yr)
Inclination37.874°
Satellite ofNeptune
GroupSao group
Physical characteristics
42 km (for albedo 0.04)[5]
Albedo0.04 (assumed)[5]

Laomedeia /ˌleɪəməˈdiːə/, also known as Neptune XII, is a prograde irregular satellite of Neptune. It was discovered by Matthew J. Holman, et al. on August 13, 2002.[6] Before the announcement of its name on February 3, 2007 (IAUC 8802), it was known as S/2002 N 3.

It orbits Neptune at a distance of about 23,571,000 km and is about 42 kilometers in diameter (assuming albedo of 0.04).[5] It is named after Laomedeia, one of the 50 Nereids.

  1. ^ Cite error: The named reference JPL-Discoverers was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference IAUC 8047 was invoked but never defined (see the help page).
  3. ^ "Laomedian" in Otley (1828) Essays on the nature, causes and effects of national antipathies
  4. ^ Cite error: The named reference JPL-Jacobson2008 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference SheppardJewittKleyna2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference HolmanKavelaarsGrav2004 was invoked but never defined (see the help page).