|
|
June 1990 |
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 Too Smooth: COBE's Perfect Universe By
Jeff Kanipe The Cosmic Background Explorer confirmed a simple Big Bang but left the question of how galaxies formed unanswered. |
pg. 20 |
The Case for Density Waves By
David J. Eicher Astronomers equipped with supercomputers have come up with strong evidence that density waves shape spiral galaxies. |
pg. 28 |
The Magnetic Milky Way By
Gerrit L. Verschuur New radio observations reveal magnetic field structures around the core of our galaxy. |
pg. 32 |
ASTRONOMY Sky Almanac ASTRONOMY Tests Four Medium-Aperture Refractors By
Robert Burnham These high-quality telescopes differ mainly in small details. |
pg. 52 |
Get Ready for Weekend Observing By
Steve Coe If you're going to a distant dark-sky site, don't forget your eyepieces. |
pg. 60 |
Observing Nebulosities in Cygnus By
Alan Goldstein This constellation contains a unique assortment of nebulae that will enrich your summer observing. |
pg. 64 |
Beneath the Neon Lights By
Peter L. Manly You can observe from your backyard in spite of bright city lights. |
pg. 70 |
Departments Behind the Scenes Letters Viewpoint What's in a Name? AstroNews Astronomers Find Walls of Galaxies Space News To Mars via Ohio Amateur News Light Pollution Victory Reader Reports The Lure of the Horsehead Forum Astronomy Books Astronomy Products Meetings and Events Readings and Resources Credits Advertiser Index
|
 |
Look for this icon. This denotes premium subscriber content.
Learn more » |
Receive news, sky-event information, observing tips, and more from Astronomy's weekly e-mail newsletter
|