Thebe


Natural satellite of Jupiter

Discovered by Jewitt & Danielson in 1979 and provisionally designated 1979 J1. It is now designated Jupiter XIV

Physical Parameters

Thebe
Equatorial Diameter 110 kilometres
Polar Diameter 90 kilometres

Orbital Parameters

Thebe
Mean Distance from Jupiter 221,900,000 kilometres
Mean Sidereal Period 0.675 earthdays
Eccentricity 0.013
Inclination 0.9 degrees
Opposition Magnitude (Average) 15.7

The two images show the moon Thebe. Thebe rotates by approximately 50 degrees between the time these two images were taken, so that the same prominent impact crater is seen in both views; this crater, which has been given the provisional name Zethus, is near the point on Thebe that faces permanently away from Jupiter. In both the images, north is approximately up, the top image was taken on November 7, 1997 at a range of 504,000 kilometers (about 313,000 miles) by the Galileo probe and the bottom one taken on November 7, 1997 at a range of 548,000 kilometers (about 340,000 miles) again by the Galileo probe.

Images courtesy of NASA / Cornell University

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