Night Sky Almanac 2025: A Stargazer’s Guide

Follow the progress of constellations throughout the seasons with this beautiful companion to the night sky from astronomy experts Collins

With the aid of easy-to-understand monthly calendars and maps, you will chart the rhythm of the lunar phases, discover events that light up the sky for brief periods, and explore the rich tapestry of characters that adorn the starry canvas overhead.

Never miss a night sky event wherever you are in the world with this month-by-month guide go meteor spotting, track the phases of the moon and explore the constellations worldwide coverage. With details for both the Northern and Southern hemispheres discover fascinating celestial facts and notable astronomical anniversaries

Written and illustrated by astronomical experts Storm Dunlop and Wil Tirion, and approved by the astronomers of Royal Observatory Greenwich.

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.