Laomedeia - Misplaced Pages

(Redirected from Laomedeia (moon)) Moon of Neptune

Laomedeia
Discovery
Laomedeia imaged by the Very Large Telescope's FORS1 imager in September 2002
Discovered by	M.Holman JJ Kavelaars T. Grav W. Fraser D. Milisavljevic
Discovery date	August 13, 2002
Designations
Designation	Neptune XII
Pronunciation	/ˌleɪəməˈdiːə/
Named after	Λαομέδεια Lāomedeia
Alternative names	S/2002 N 3
Adjectives	Laomedeian
Orbital characteristics
Epoch 2003 Jun. 10.00 TT
Semi-major axis	23,613,000 km
Eccentricity	0.3969
Orbital period (sidereal)	3171.33 days (8.68 yr)
Inclination	37.874°
Satellite of	Neptune
Group	Sao group
Physical characteristics
Mean diameter	42 km (for albedo 0.04)
Albedo	0.04 (assumed)

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. 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). It is named after Laomedeia, one of the 50 Nereids.

References

JPL (2011-07-21). "Planetary Satellite Discovery Circumstances". Jet Propulsion Laboratory. Retrieved 2011-10-24.
Green, Daniel W. E. (January 13, 2003). "Satellites of Neptune". IAU Circular. 8047. Retrieved 2011-10-24.
"Laomedian" in Otley (1828) Essays on the nature, causes and effects of national antipathies
Jacobson, R. A. (2008). "NEP078 – JPL satellite ephemeris". Planetary Satellite Mean Orbital Parameters. Retrieved 2009-09-23.
^ Sheppard, Scott S.; Jewitt, David C.; Kleyna, Jan (2006). "A Survey for "Normal" Irregular Satellites around Neptune: Limits to Completeness". The Astronomical Journal. 132 (1): 171–176. arXiv:astro-ph/0604552. Bibcode:2006AJ....132..171S. doi:10.1086/504799. S2CID 154011.
Holman, M. J.; Kavelaars, J. J.; Grav, T.; et al. (2004). "Discovery of five irregular moons of Neptune" (PDF). Nature. 430 (7002): 865–867. Bibcode:2004Natur.430..865H. doi:10.1038/nature02832. PMID 15318214. S2CID 4412380. Retrieved 24 October 2011.

External links

Moons of Neptune

Listed in approximately increasing distance from Neptune

Regular (inner)

Irregular

Triton	Triton atmosphere climate geology
Prograde	Nereid Sao S/2002 N 5 Laomedeia
Retrograde	Halimede Psamathe Neso S/2021 N 1

See also

v t e Natural satellites of the Solar System
Planetary satellites of	Earth Mars Jupiter Saturn Uranus Neptune
Dwarf planet satellites of	Orcus Pluto Haumea Quaoar Makemake Gonggong Eris
Minor-planet moons	Near-Earth Florence Didymos Dimorphos Moshup Squannit 1994 CC 2001 SN₂₆₃ Main belt Kalliope Linus Euphrosyne Daphne Peneius Eugenia Petit-Prince Sylvia Romulus Remus Minerva Aegis Gorgoneion Camilla Elektra Kleopatra Alexhelios Cleoselene Ida Dactyl Roxane Olympias Pulcova Balam Dinkinesh (Selam) Jupiter trojans Patroclus Menoetius Hektor Skamandrios Eurybates Queta TNOs Lempo Hiisi Paha 2002 UX₂₅ Sila–Nunam Salacia Actaea Varda Ilmarë Gǃkúnǁʼhòmdímà Gǃòʼé ǃHú 2013 FY₂₇
Ranked by size	Ganymede largest: 5268 km / 0.413 Earths Titan Callisto Io Moon Europa Triton Titania Rhea Oberon Iapetus Charon Umbriel Ariel Dione Tethys Dysnomia Enceladus Miranda Vanth Proteus Mimas Ilmarë Nereid Hiʻiaka Actaea Hyperion Phoebe ...
Discovery timeline Inner moons Irregular moons List Planetary-mass moons Naming Subsatellite Regular moons Trojan moons

Neptune

Outline of Neptune

Geography

Moons

Astronomy

Discovery	Urbain Le Verrier Johann Gottfried Galle John Couch Adams Heinrich Louis d'Arrest William Lassell
General	Kuiper belt Neptune-crossing minor planets
Trojans	385571 Otrera 385695 Clete 2001 QR322 2004 KV18 2005 TN53 2006 RJ103 2007 VL305 2008 LC18 2011 HM102

Exploration

Past	Voyager 2 (1989 flyby)
Proposals	Shensuo Neptune Odyssey ODINUS Triton Hopper Trident
Not selected	Argo Mariner Mark II New Horizons 2

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