Halimede (moon)

Halimede
Set of stacked discovery images from August 2003, showing Halimede among trailed stars
Discovery[1][2]
Discovered by
Discovery dateAugust 14, 2002
Designations
Designation
Neptune IX
Pronunciation/hæləˈmiːdiː/[3]
Named after
Ἁλιμήδη Halimēdē
S/2002 N 1
AdjectivesHalimedean /ˌhæləməˈdiːən/
Orbital characteristics[4]
Epoch June 10, 2003
16,611,000 km
Eccentricity0.2646
1879.08 d
(5.14 a)
Inclination134.1°
Physical characteristics
62 km (for albedo 0.04)[5]
Albedo0.04 (assumed)[5]
Spectral type
neutral (grey)
B-V=0.73 R-V=0.35[6]


Halimede /hæləˈmiːdiː/, or Neptune IX, is a retrograde irregular satellite of Neptune. It was discovered by Matthew J. Holman, John J. Kavelaars, Tommy Grav, Wesley C. Fraser and Dan Milisavljevic on August 14, 2002.[7]

  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. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  4. ^ Cite error: The named reference JPL-Jacobson2008 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference SheppardJewittKleyna2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference GravHolmanFraser2004 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference HolmanKavelaarsGrav2004 was invoked but never defined (see the help page).