Elements of astronomy
Subtitle: accompanied with numerous illustration, a colored representation of the solar, stellar, and nebular spectra, and celestial charts ... hemisphere. By J. Norman Lockyer ...
Publisher: Scholarly Publishing Office, University of Michigan Library
Published: December 20, 2005
Language: eng
Format: Paperback
Number of pages: 318
ISBN-13: 9781425531249
Subjects: American history; History; History - U.S.; History: American; USA; United States - General; History / United States / General
First sentence: 40. Magnitudes of the Stars.-The first thing that strikes us when we look at the stars is, that they vary very much in brightness.