Astronomy can be cold and damp - don't head for home, get some layers on!

Clear nights are usually cold, and anyone who has spent a few hours stargazing into the night will know that a warm night can end up feeling cold and damp. Here we focus on waterproofs, windbreakers, fleeces, hooded tops and long sleeve under layers, or even just a light waterproof to throw over your telescope when an unexpected shower hits.