Le Ciel à l'œil nu is the reference book for sky observers. It guides you in the city and in the countryside to practise one of the oldest human activities in the simplest way possible: observing the starry sky, the planets and the moon.
This twenty-first edition is packed with observation stories and practical advice, spiced with encyclopaedic and mythological information about the planets and stars, and ideas for easily observing or photographing the most beautiful encounters between the planets, the Sun and the Moon visible from January to December 2023.
Two sky maps per month to locate constellations and planets in the evening and before dawn.
Observe full moons, zodiacal light, a partial lunar eclipse, an occultation of Venus, the Northern Lights, the Milky Way, and zoom in on the central black hole of our galaxy.
Learn how to photograph the starry sky and discover the International Dark Sky Reserves in mainland France.
A practical section at the beginning of the book brings together all the information you need to observe the sky or choose your first instrument, including new orientation tables for the Big Dipper and Orion.
With the website associated with this guide, you can obtain additional information, printable sky maps, high-resolution images of the stars and direct links to useful sites for your daily amateur astronomy.
150 illustrations, photographic diagrams, sky maps, and exclusive images.
