This book provides a unique view into the science of mapping celestial bodies using photographic plates. Written in 1890, its relevance persists today, remaining one of the earliest demonstrations of how different photographic exposure times and aperture sizes can influence our perception of the night sky's brightness. Through extensive research and experiments, the author presents an empirical equation to calculate a star's magnitude and visual brightness, based on photographic data and taking into account Earth's atmospheric conditions. This groundbreaking work lays the groundwork for modern astronomy and astrophotography, helping us better understand the scale and depth of the cosmos.
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Seller: Forgotten Books, London, United Kingdom
Paperback. Condition: New. Print on Demand. This book provides a unique view into the science of mapping celestial bodies using photographic plates. Written in 1890, its relevance persists today, remaining one of the earliest demonstrations of how different photographic exposure times and aperture sizes can influence our perception of the night sky's brightness. Through extensive research and experiments, the author presents an empirical equation to calculate a star's magnitude and visual brightness, based on photographic data and taking into account Earth's atmospheric conditions. This groundbreaking work lays the groundwork for modern astronomy and astrophotography, helping us better understand the scale and depth of the cosmos. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781333439231_0
Quantity: Over 20 available
Seller: PBShop.store US, Wood Dale, IL, U.S.A.
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781333439231
Seller: PBShop.store UK, Fairford, GLOS, United Kingdom
PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781333439231
Quantity: 15 available