Trigonometric parallaxes of four hundred and forty stars, determined by photography with the 26-inch refractor of the Leander McCormick observatory, together with the measurement and discussion of proper motions, double stars, etc., from parallax plates
Our rough guess is there are 87,250 words in this book.
At a pace averaging 250 words per minute, this book will take 5 hours and 49 minutes to read. With a half hour per day, this will take 12 days to read.
How long will it take you?
This book will take an estimated to read at a reading speed averaging words per minute. With 30 minutes per day, this will take to read.
Enter your reading speedYou can take one of our WPM reading speed tests to find your reading speed.
Create a free account to track your reading progress, build your reading list, and set reading goals.
Author
Contributions
- Olivier, Charles P. b. 1884. - Contributor
- Alden, H. L. 1890- - Contributor
Publication
1928 - Government Printing Office, Washington, No place, unknown, or undetermined
Language
English
Subjects
Series Statement
- National Academy of Sciences (U.S.) Memoirs -- v. 22, no. 1.
- Memoirs of the National Academy of Sciences -- v. 22, no. 1.
Reader Reviews
No reviews yet for this book.
Be the first to share your thoughts!