2025 Guide to the Night Sky: A month-by-month guide to exploring the skies above Britain and Ireland

From the UK’s Number One Astronomy publisher, this is the bestselling stargazing handbook to the planets, stars and constellations visible from the northern hemisphere. With 6 pages for each month covering January–December 2025. This practical guide is an easy introduction to astronomy and a useful reference for seasoned stargazers. Designed for Britain and Ireland but usable anywhere in the world between 40°N and 60°N, covering most of Europe, southern Canada and the northern United States. Written and illustrated by astronomical experts, Storm Dunlop and Wil Tirion, and approved by the astronomers of the Royal Observatory Greenwich. Includes: • Advice on where to start looking and a map of dark sky sites to avoid light pollution. • Charts for the circumpolar and seasonal constellations. • Easy-to-use star charts for each month with descriptions of objects and events to look for in 2025. • Positions of the moon, visible planets and eclipses. • A section on comets and a detailed map of the moon. Now in three editions: Britain and Ireland; North America; Southern Hemisphere. ,

Wil Tirion was trained in graphic arts and has always had an interest in astronomy and especially star charts. In 1983 he became a self-employed full time Uranographer. Since then he has contributed to many atlases, books and magazines. In 1987 he received the ‘ Dr. J. van der Bilt-prize’ , a Dutch award for amateur astronomers. In 1993 this was followed by a second, more international ‘ award’ , when a minor planet was named after him: (4648) Tirion = 1931 UE.

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.