Jon Smith II Cover Image

About the Author: Richard A. Proctor

Richard Anthony Proctor (23 March 1837 in Chelsea, London – 12 September 1888) was an English astronomer.

He is best remembered for having produced one of the earliest maps of Mars in 1867 from 27 drawings by the English observer William Rutter Dawes.

His map was later superseded by those of Giovanni Schiaparelli and Eugène Antoniadi and his nomenclature was dropped (for instance, his "Kaiser Sea" became Syrtis Major Planum).

He used old drawings of Mars dating back to 1666 to try to determine the sidereal day of Mars. His final estimate, in 1873, was 24h 37m 22.713s, reasonably close to the modern value of 24h 37m 22.663s. Nevertheless, Frederik Kaiser's value of 24h 37m 22.622s is closer.

A crater on Mars is named after Proctor.


Other books by Richard A. Proctor

 
Jon Smith II Cover Image

Find the best price forJon Smith II

Goodreads rating: 5.00

Paperback, Published in Jan 2011 by Xlibris Corporation

ISBN10: 1456846892 | ISBN13: 9781456846893

Page count: 190

Compare New Book Prices for Jon Smith II
Retailer
Price
Delivery
 
Total
 
...

SEARCHING FOR PRICES...

Categories for this title

Compare book prices with SocialBookco. Get by at the best price. This book is for ISBN which is a copy .