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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

October 1989

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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
Through the Looking Glass
By George Greenstein
Imagine universes sprouting from other universes.
pg. 20
First Discoveries at Neptune
By Richard Berry
Voyager 2 images were already surprising scientists months before closet approach.
pg. 32
Surveying the Scars of Ancient Martian Floods
By Mark S. Robinson
Take an aerial tour of a water-carved valley on Mars.
pg. 38
A Lifetime Devoted to Astronomy
By Katherine Bracher
Charles Burckhalter's contributions to astronomy started with a few photographs of the 1889 solar eclipse.
pg. 50
ASTRONOMY Sky Almanac
ASTRONOMY's 1989 Guide to Telescopes
By Editors of Astronomy magazine
Everything you need to know to find the telescope that's right for you.
pg. 70
ASTRONOMY Surveys Twelve Small Refractors
By Robert Burnham
An in-depth look at these ubiquitous telescopes.
pg. 80
Genesis of a Legend
By Alan Dyer
How the Schmidt-Cassegrain telescope revolutionized amateur astronomy.
pg. 86
The Ghostly Glow of Gaseous Nebulae
By David Higgins
Tips on observing these extremely faint objects.
pg. 93
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