What makes constellations?

Constellations are named after a Greek or Roman God. They were made to help sailors find their way. Now they are used to help more people find their way. In this world such help is very useful.

Sunday, August 24, 2025

Ganymede

"Jupiter’s moon Ganymede is the largest moon in the solar system.Jupiter’s moons are sometimes called the Jovian satellites, the largest of these are Ganymeade, Callisto Io and Europa. Ganymeade measures 5,268 km across, making it larger than the planet Mercury."https://space-facts.com/jupiter/#google_vignette

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