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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

January 2009

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
Top 10 stories of 2008
By Daniel Pendick
Astronomers saw the first moments of a star's death, the Phoenix Lander tasted martian water, exoplanet hunters discovered a mini version of our solar system, and more.
pg. 28
By Daniel Pendick
Major astronomy and space events planned for 2009 include the first major test of the space shuttle replacement, a rendezvous of the Dawn spacecraft with Mars, and the launch of a roving laboratory to the Red Planet.
Is our galaxy running out of gas?
By Bruce Dorminey
New results from the Spitzer Space Telescope suggest the Milky Way is creating so many stars that it may run out of gas in a billion years.
pg. 38
By Richard Talcott
Two infrared surveys conducted by the Spitzer Space Telescope have revealed the Milky Way like never before.
How Johannes Kepler revolutionized astronomy
By Daniel Hudon
This 17th-century German astronomer explained planetary orbits, discovered light's inverse-square law, and wrote the first modern book on optics.
pg. 56
Explore the sky's spooky reflection nebulae
By Thomas V. Davis
You'll need a big scope and a dark sky to explore the van den Bergh catalog's challenging objects.
pg. 64
By Michael E. Bakich
Download a list of the 158 reflection nebulae that Sidney van den Bergh catalogued.
Find your way through the winter sky
By Michael E. Bakich
The crisp, clear skies of winter beckon beginning observers.
pg. 70
Orion's StarBlast 6 makes a great first scope
By Glenn Chaple
This grab-and-go telescope offers 6 inches of light-gathering in a compact design.
pg. 72
Departments
This Month in Astronomy
Beautiful Universe
Letters
Bob Berman's Strange Universe
Stephen James O'Meara's Secret Sky
A mirror image
News
The Sky this Month
Ask Astro
Transits
Big and small
Scenic vista
Glenn Chaple's Observing Basics
The phases of Venus
Phil Harrington's Binocular Universe
Follow the Charioteer
New Products
Advertiser Index
Reader Gallery
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