The view from the US East Coast around 8:30PM EST 24 Jan. (Created by Author in Starry Night).
One of the first things that Galileo noticed with his primitive telescope was the moons of Jupiter. This ‘solar system in miniature’ 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. [Read more...]