# Astronomy college course/Wikipedia Sidereus Nuncius/Quiz01/10

${\displaystyle {\mathcal {TIP}}}$   This page is reserved for question 10 of this quiz. Record your contributions under a header with your username. Wikimedia policy is that all user contributions are attributed, so this subpage will always be associated with problem 10. Each semester, all contributions will be archived in a way that ensures that your attribution is preserved

## Contributions by mikeu talk

There's a typo in No. 10 "When the German astronomy Marius" --mikeu talk 20:58, 2 January 2016 (UTC)

Way to go mikeu! But everybody, there is still much to do: Can you write a short essay that makes this an interesting fact? Can you find a reference for this fact? (How do we know its actually true). Can you write a similar question with different wording so that the testbank becomes so large that very few students could read it in a semester?--Guy vandegrift (discusscontribs) 21:10, 2 January 2016 (UTC)
Here's the reference. It is behind a paywall, but all the facts cited at wp are freely available in the abstract. --mikeu talk 23:23, 2 January 2016 (UTC)
Pasachoff, Jay M. (May 2015). "Simon Marius’s Mundus Iovialis: 400th Anniversary in Galileo’s Shadow". Journal for the History of Astronomy 46 (2): 218-234. doi:10.1177/0021828615585493. Retrieved 2016-01-02.
Here's more detail. --mikeu talk 23:45, 2 January 2016 (UTC)
Van Helden, Albert. "Simon Marius". The Galileo Project. Rice University. Retrieved 2016-01-02.