2026 Guide to the Night Sky

The ideal gift for all amateur and seasoned astronomers.
"This is a great guide to the night sky at a great price."Astronomy Now
"A handy and straightforward guide."British Astronomical Association's Journal
"An ideal Christmas stocking-filler." The Observatory

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 competition.