Man in early 20th century clothing, sitting at the eyepiece of a large telescope.

Percival Lowell observing Venus in the daytime from the observer’s chair of the 24-inch (61 cm) Alvan Clark & Sons refracting telescope, installed in the summer of 1896 at the Lowell Observatory, which he established in Flagstaff, Arizona (USA). Although known for observing Mars, this image has a long running attribution of “Percival Lowell observing the planet Venus in the daytime”,[1] something he did from 1896 onward, observing the planet high in the daytime sky with the telescope’s lens stopped down to 3 inches in diameter. This image of an older Lowell was taken in 1914.

October 20, 2016

Like what you read?
Subscribe and receive daily news delivered to your inbox.

Your email address will only be used for EarthSky content. Privacy Policy
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

More from 

Deborah Byrd

View All