Adrastea

More Views

Adrastea
Adrastea, also known as Jupiter XV, is the second by distance, and the smallest of the four inner moons of Jupiter. It was discovered in photographs taken by Voyager 2 in 1979, making it the first natural satellite to be discovered from images taken by an interplanetary spacecraft, rather than through a telescope. It was officially named after the mythological Adrasteia, foster mother of the Greek god Zeus—the equivalent of the Roman god Jupiter. Adrastea (moon) - Wikipedia, the free encyclopedia
Additional Information

Additional Information

Short Description Adrastea, also known as Jupiter XV, is the second by distance, and the smallest of the four inner moons of Jupiter. It was discovered in photographs taken by Voyager 2 in 1979, making it the first natural satellite to be discovered from images taken by an interplanetary spacecraft, rather than through a telescope. It was officially named after the mythological Adrasteia, foster mother of the Greek god Zeus—the equivalent of the Roman god Jupiter. Adrastea (moon) - Wikipedia, the free encyclopedia
Discovered by David C. Jewitt, G. Edward Danielson
Discovery date 8 July 1979
Type Moon
AddInfo Jupiter XV
Satellite of Jupiter
Orbit Prograde
Rotation Synchronous
Apoapsis 06 129 210 km
Periapsis 06 128 750 km
Semi-major axis 06 129 000 km
Distance from Sun 01 5.202 60 au /02
Eccentricity 0.001 5
Orbital period 0.29826 day | 7 hour, 9.5 min
Orbital speed 02 31.378 km/s
Mean anomaly 135.673
Inclination to the ecliptic 000.054°
Inclination to the equator 000.03°
Longitude of the ascending node 228.378
Argument of periapsis 328.047
Diameter/Size 02 16.4 ± 4.0 km
Dimensions 20 × 16 × 14 km
Mass 1016×1.8894 kg
Density 01 4.5 g/cm3
Surface gravity  0.012 m/s2
Axial tilt
Temperature mean 02 122 K
Comments