A. E. Douglass
Astronomer, Academic
1867 – 1962
Who was A. E. Douglass?
A. E. Douglass was an American astronomer. He discovered a correlation between tree rings and the sunspot cycle.
Douglass founded the discipline of dendrochronology, which is a method of dating wood by analyzing the growth ring pattern. He started his discoveries in this field in 1894 when he was working at the Lowell Observatory. During this time he was an assistant to Percival Lowell and William Henry Pickering, but fell out with them, when his experiments made him doubt the existence of artificial "canals" on Mars and visible cusps on Venus.
Craters on the Moon and Mars are named in his honor.
We need you!
Help us build the largest biographies collection on the web!
- Born
- Jul 5, 1867
Windsor - Nationality
- United States of America
- Profession
- Education
- Trinity College
- Lived in
- Vermont
- Died
- Mar 20, 1962
Tucson
Submitted
on July 23, 2013
Citation
Use the citation below to add to a bibliography:
Style:MLAChicagoAPA
"A. E. Douglass." Biographies.net. STANDS4 LLC, 2025. Web. 16 Mar. 2025. <https://www.biographies.net/people/en/a_e_douglass>.
Discuss this A. E. Douglass biography with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In