The Royal Observatory, Greenwich is the home of Greenwich Mean Time and the Prime Meridian of the World, making it the official starting point for each new day and year. It is also home to London's only planetarium, the Harrison timekeepers and the UK's largest refracting telescope. It runs the annual Astronomy Photographer of the Year exhibition.
A wonderfully comprehensive and well-written guide about all facets of Northern Lights-hunting. You'll find enjoyment from this excellent guide to a fabulous natural phenomenon. Jamie Carter, BBC Sky at Night Magazine