Sponde (moon)

Sponde
Provisional or systematic name	S / 2001 J 5
Central body	Jupiter
Properties of the orbit
Major semi-axis	23,487,000 km
Periapsis	16,159,000 km
Apoapsis	30,815,000 km
eccentricity	0.3121
Orbit inclination	151.00 °
Orbital time	748.34 d
Mean orbital velocity	2.28 km / s
Physical Properties
Albedo	0.04
Apparent brightness	23.0 likes
Medium diameter	2 km
Dimensions	≈ 1.5 10 13 kg
Medium density	2.6 g / cm 3
Acceleration of gravity on the surface	≈ 0 m / s 2
Escape speed	≈ 0 m / s
discovery
Explorer	IFA Hawaii
Date of discovery	December 9, 2001

Sponde (Jupiter moon XXXVI) is one of the smaller outer moons of the planet Jupiter .

discovery

Sponde was discovered by astronomers at the University of Hawaii on December 9, 2001 . It was initially given the provisional designation S / 2001 J 5.

The moon was named after Sponde , one of the Horen from Greek mythology .

Orbit data

Sponde orbits Jupiter at a mean distance of 23,487,000 km in 748 days, 8 hours and 10 minutes. The track has an eccentricity of 0.3121. With an inclination of 150.998 °, the orbit is retrograde, that is, the moon moves around the planet against the direction of rotation of Jupiter.

Due to its orbital properties, Sponde is assigned to the Pasiphae group , named after the Jupiter moon Pasiphae .

Physical data

Sponde has a mean diameter of about 2 km. Their density is estimated at 2.6 g / cm³. It is probably made up mainly of silicate rock. Sponde has a very dark surface with an albedo of 0.04, i.e. that is, only 4% of the incident sunlight is reflected. Their apparent brightness is 23.0 ^m .

Web links

• MPEC 2002-J54: Eleven new Satellites of Jupiter May 15, 2002 (discovery)
• IAUC 7900: Satellites of Jupiter May 16, 2002 (discovery)
• MPEC 2003-E05: S / 2001 J 5 March 1, 2003 (rediscovery)
• IAUC 8177: Satellites of Jupiter, Saturn, Uranus August 8, 2003 (numbering and naming)

before	Jupiter moons	after that
Orthosia	Sponde	Kale