
A star to measure the size of the Universe!
On Friday last week we hosted the first of our Urban Astronomy sessions in Stoke Bishop. Our theme was one of royalty as we explored the part of the night sky dominated by Cepheus the King, Cassiopeia the Queen and Andromeda, their daughter, unceremoniously chained to rock. There is some amazing stuff to be seen in this part of the sky - kappa Cassiopeiae, at 4700 light years away, is probably the most distant star visible with the unaided eye. We had on hand a Neolithic a