Picture of the Day: Tyco Brahe's 'Armillae Aequatoriae Maximae'

More

tycho12.jpg

Danish nobleman Tyco Brahe (1546-1601) was the greatest astronomer of his time, taking the most accurate measurements of the orbits of planets and the moon with scientific instruments of his own design. The telescope was not invented until seven years after his death. Above, his "armillae aequatoria maximae" (or, "great equatorial armillary") used for measuring the paths of planets and the moon across the sky, as found in Johan Blaeu's Le grand atlas ou cosmographie Blaviane, published in 1663. Blaeu's work was comprised of 12 volumes, totaling some 3,000 pages of text and nearly 600 double-page maps. Blaeu's hand-colored depictions of Brahe's instruments are based on Brahe's own wood-cuts, first published in his Astronomiae Instauratiae Mechanicae from 1598.

Below, recent Pictures of the Day:

Image: Booktryst.

Jump to comments
Presented by

Rebecca J. Rosen is a senior editor at The Atlantic, where she oversees the Business Channel. She was previously an associate editor at The Wilson Quarterly.

Get Today's Top Stories in Your Inbox (preview)

A Technicolor Time-Lapse of Alaska's Northern Lights

The beauty of aurora borealis, as seen from America's last frontier


Join the Discussion

After you comment, click Post. If you’re not already logged in you will be asked to log in or register. blog comments powered by Disqus

Video

What Do You Wish You Learned in College?

Ivy League academics reveal their undergrad regrets

Video

Famous Movies, Reimagined

From Apocalypse Now to The Lord of the Rings, this clever video puts a new spin on Hollywood's greatest hits.

Video

What Is a City?

Cities are like nothing else on Earth.

Video

CrossFit Versus Yoga: Choose a Side

How a workout becomes a social identity

Video

In Online Dating, Everyone's a Little Bit Racist

The co-founder of OKCupid shares findings from his analysis of millions of users' data.

Writers

Up
Down

More in Technology

Just In