Amédée Guillemin - Le Ciel, Notions d'astronomie - 1865

Charming illustrated edition of this 19th-century popular astronomy synthesis, designed to make scientific discoveries accessible to an educated but non-specialist audience.

The work begins with a description of celestial phenomena visible to the naked eye, such as the apparent movement of stars, the phases of the Moon, and eclipses, before expanding to modern observation instruments, notably the lens and the telescope, whose optical principles and technical advancements are detailed.

Guillemin then explains the laws of celestial mechanics inherited from Newton, emphasizing universal gravitation and its role in the harmony of the planets, while simplifying Kepler's calculations and the concept of elliptical orbits.

It dedicates chapters to the planets of the solar system, their satellites, comets, and double stars, highlighting recent advances in spectroscopy that allow for the analysis of the chemical composition of celestial bodies.

Amédée Guillemin - The Sky, Notions of Astronomy - 1865 - Hachette & Cie -
x, 626 pages

Very good condition of the binding, work in its green half-morocco edition, signs of wear, rubbed edges and corners, gilded edges, spine with raised bands beautifully decorated, gilded titling and author's name, cold stamped borders framing the covers.

Good interior condition, foxing, title in red and black, work enriched with numerous illustrations in and out of the text, including frontispiece, white endpapers in good condition.

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