Sky Lights

Stunning Saturn puts on its best appearance since Gerald Ford was president

By Bob Berman
Dec 1, 2002 6:00 AMNov 12, 2019 4:44 AM

Newsletter

Sign up for our email newsletter for the latest science news
 

A glistening yellow gem encircled by hoops of gold, Saturn is one of the sky's few genuine showstoppers. Even people who have never bothered to play connect-the-dots with the constellations inevitably gasp in wonder when they see the ringed planet through a telescope. And there is no time like the present to experience this joy: Saturn hasn't looked this good for three decades.

Three types of unusual planetary orientations coincide in December to bring Saturn to its peak. First there is the tilt of Saturn's rings, which consist of billions of chunks of water ice organized into a disk that is incredibly thin, roughly 300 feet from top to bottom. The rings open up twice to us during Saturn's 29.5-year orbit, as the planet's north pole alternately appears tipped toward us and away from us. When the rings are aimed edgewise toward Earth, which last happened in 1995, they are nearly impossible to see. Earth is now in an opposite position in this cycle, so the rings appear tipped at their maximal 27-degree angle. Shinier than the planet, the rings nearly triple Saturn's total brilliance when they are viewed at their most open.

0 free articles left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

0 free articlesSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

Stay Curious

Sign up for our weekly newsletter and unlock one more article for free.

 

View our Privacy Policy


Want more?
Keep reading for as low as $1.99!


Log In or Register

Already a subscriber?
Find my Subscription

More From Discover
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Copyright © 2025 LabX Media Group