Projections

Remember how the seasons simulator shows a little Sun circle projected onto the Earth? I never thought much about it, but it turns out that circle is greatly exaggerated in size. Web comic author and über-geek Randall Munroe calculated exactly how big it is, and did the same for a bunch of other astronomical objects. Check out the full comic here (and make sure to read the hidden hover text)!

Fun fact: Munroe has an asteroid named after him (it's in the comic too)! What would you name an asteroid if you had the chance?