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Galilean Moons

Sale
Original price $34.99
Current price $17.49

A gift box showcasing the famous Galilean moons of Jupiter, discovered by Galileo.

The moons are represented by tumbled gemstones:

  • Io: Yellow Jade - 1.9 cm
  • Europa: Red Howlite -1.5 cm
  • Ganymede: Bamboo Jasper - 2.5 cm
  • Callisto: Leopard skin Jasper - 2.2 cm

The Galilean moons (or Galilean satellites) are the four largest moons of Jupiter - Io, Europa, Ganymede, and Callisto. They were first seen by Galileo Galilei in December 1609 or January 1610, and recognized by him as satellites of Jupiter in March 1610. They were the first objects found to orbit a planet other than the Earth.

They are among the largest objects in the Solar System with the exception of the Sun and the eight planets. Ganymede is the largest moon in the Solar System, and is even bigger than the planet Mercury, though only around half as massive. The three inner moons - Io, Europa, and Ganymede - are in a 4:2:1 orbital resonance with each other.

Warning: ;Ages 3+. Contains small pieces which can pose a choking hazard. Please use adult supervision at all times.

Note: ;those are natural stones and the colour may vary. Dimensions are approximate.