3.3.16

Astronomy picture of the day - 2016 March 3 - Moons and Jupiter

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Moons and Jupiter 
Image Credit & Copyright: Phillip A Cruden 
Explanation: Some of the Solar System's largest moons rose together on February 23. On that night, a twilight pairing of a waning gibbous Moon and Jupiter was captured in this sharp telescopic field of view. The composite of short and long exposures reveals the familiar face of our fair planet's own large natural satellite, along with a line up of the ruling gas giant's four Galilean moons. Left to right, the tiny pinpricks of light are CallistoIoGanymede, [Jupiter], andEuropa. Closer and brighter, our own natural satellite appears to loom large. But Callisto, Io, and Ganymede are actually larger than Earth's Moon, while water world Europa is only slightly smaller. In fact, of the Solar System's sixlargest planetary satellites, only Saturn's moon Titan is missing from the scene.

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