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Thursday, November 9, 2023

Australia versus the Moon

Purnululu National Park

This morning's jigsaw puzzle. While technically Purnululu National Park is in Western Australia, it is closer to the northern edge. It is about 400 miles SSW of Darwin. (Google Map)

Coincidentally, I heard someone (Neil deGrasse Tyson maybe) comparing the diameter of the Moon to the size of Australia. Looking for a picture to illustrate this, I came across this 3D poster which gives a better picture of the situation than a simple 2D map.

Australia versus the Moon

Moon Versus Moon

Our Moon is the fifth largest satellite in the Solar System. Three of the larger moons (Ganymede, Callisto and Io) are in orbit around Jupiter, one orbits Saturn (Titan). Our Moon is larger than the fourth Galilean moon (Europa).

Moons of Mars

Mars has two known moons, Phobos and Deimos ("fear" and "dread", after attendants of Ares, the Greek god of war, equivalent to the Roman Mars). 

Fear and Dread? Excellent! I'm going to look for an opportunity to deploy that factoid. 


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