Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

September 1990

Purchase this Issue
Subscribe today and save!
The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level. 
Features
Where Do Comets Come From?
By Damond Benningfield
The origin of comets is one of the mysteries of the solar system.
pg. 28
Voyager's Last Light
By John Williams
Voyager 1 captured a parting portrait of our entire family of planets.
pg. 38
Hubble's Brave New Universe
By Jeff Kanipe
Let the exploration begin! Here's what astronomers hope to be looking at during the Hubble Space Telescope's first year in orbit.
pg. 44
ASTRONOMY Sky Almanac
Fuji's Miraculous Super HG 400
By Tony Hallas, Daphne Hallas
This new film is one of the best for astrophotography.
pg. 62
Comets Encke and Levy
By Charles S. Morris
Two comets provide an autumn of fascinating comet-watching.
pg. 66
The Changing Fortunes of Comet Austin
By David J. Eicher
Our Collection of portraits proves this was a comet still worth following.
pg. 71
The Red Planet's Return to Glory
By Richard Talcott
Mars is back and putting on its best show until the next century.
pg. 74
Splashy Summer Star Clusters
By Alan Goldstein
Here's some bright star clusters you don't need a telescope to explore.
pg. 78
Departments
Behind the Scenes
Letters
Viewpoint
Where Is Amateur Astronomy Going?
AstroNews
The Great Attractor
Space News
NASA Juggles Launch Schedule
Amateur News
Telescopes in Texas and California
Reader Reports
Amateurs Observe Comet Austin
Forum
Astronomy Books
Astronomy Products
First Look at a Fabulous CCD
Meetings and Events
Readings and Resources
Credits
Advertiser Index
SEARCH SITE
Subscriber Only Access
Subscriber Only Content
Look for this icon. This denotes premium subscriber content. Learn more »
Become a Member of Astronomy.com
Register today for access to more valuable resource information.
Interact in our forums, comment on articles, receive our newsletter and much more!
Not a member?
Subscriber and Member Login
Password
Remember me