How to use the Cassiopeia constellation to spot Andromeda and Pegasus

By Abigail Beall

THERE are some constellations you only need to learn once, then you can spot them for the rest of your life. Others are more difficult to find, and you might need some help to work out what they are. This week, we are using an example of the former – the mid-sized but distinctive Cassiopeia – as a jumping-off point to explore further.

While Cassiopeia is a northern hemisphere constellation, at this time of year, it can be seen from northern parts of the southern hemisphere too, as far as 20 degrees south. Its position near the north star, also known as …