Lunar Mountains

Aimed at pupils aged 11-16, this workshop challenges students to measure the shadows cast on the Moon’s surface, then utilise algebraic techniques to determine the height of those mountains.

You can download the individual files needed for this activity below, or this zip file (4mb) contains them all. 

Angles in Astronomy

An arcsecond is a very small angle
Credit: NSO

Astronomers use angles a lot to work out where things are in the sky. We can measure the size of an object in the sky and mark its position by using angles. If we know how much of the sky an object covers (as an angle) and how far away it is - we can work out its actual size.