Photographic investigations of faint nebulae by Edwin Hubble

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About this eBook

Author Hubble, Edwin, 1889-1953
LoC No. 20002512
Title Photographic investigations of faint nebulae
Original Publication Chicago: The University of Chicago Press, 1920.
Series Title Publications of the Yerkes Observatory, volume IV part II
Credits Charlene Taylor, Bryan Ness and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.)
Summary "Photographic Investigations of Faint Nebulae" by Edwin H. Hubble is a scientific publication written in the early 20th century. The work focuses on the methodical study of nebulae using photographic techniques, aiming to catalog and analyze these faint celestial objects that lie beyond our solar system. Hubble explores 512 previously uncatalogued nebulous objects organized into clusters, highlighting the significance of photographic plates in astronomy. The opening of the book presents an introduction to the study of nebulae, emphasizing the evolution of observation techniques from visual to photographic methods, demonstrating their inherent advantages. Hubble discusses the current state of knowledge regarding the nature and classification of new nebulae, noting that approximately 17,000 have been catalogued, with estimates suggesting many more await discovery. He outlines the systematic approach taken during his observations at Yerkes Observatory and mentions the classification system used for cataloging these celestial wonders while indicating the inherent challenges posed by measuring faint objects in the night sky. This sets the stage for a detailed exploration of the findings in the subsequent sections of the work. (This is an automatically generated summary.)
Language English
LoC Class QB: Science: Astronomy
Subject Nebulae
Category Text
EBook-No. 71654
Release Date
Copyright Status Public domain in the USA.
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