February 20, 2018

AstroEvent: Catch Jupiterís Moons in 1-2-3-4 order.

Recently Iíd caught something at a star party thatís worth looking out for; Jupiterís moons in 1-2-3-4 order.†This event happens 3 to 4 times a month, and is always a good teaching moment to name and explain the four Galilean moons.

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AstroEvent: A 2xJovian Moon Transit.

One of the first things that Galileo noticed with his primitive telescope was the moons of Jupiter. This Ďsolar system in miniatureí fascinated him, as he watched and recorded the changes in position presented by these four moons night to night. Even today, watching these changes can be a fun endeavor, and is a view available to even the smallest telescopes. This week, I challenge you to try and view a double transit of the Galilean moons.

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