Sky & Telescope April 2011

FEATURED ARTICLES

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Star Trails from the Top of the World
TWAN ambassadors host star parties and photograph the night sky in Nepal's High Himalaya.
By Babak A. Tafreshi

Photometry for All in the Digital Age
You can make valuable scientific contributions to astronomy with an off-the-shelf digital camera.
By Brian Kloppenborg and Tom Pearson

Stellar Winds Above Atlantic Clouds
On a cold mountaintop in the Canary Islands, amateurs work with pros on a hot-star research project.
By Thomas Eversburg

BEYOND THE PRINTED PAGE

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Exploring Exoplanet's Host Stars
Listen to a podcast interview with Caltech astronomer John Johnson talking about the implications of his research on the kinds of stars that host planets.
By John Johnson

Lunar Librations for April 2011
There wasn't enough room to run our usual lunar libration diagram in the April 2011 issue. Click here to download it in PDF form.
By The Editors of Sky & Telescope

ALSO IN THIS ISSUE

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A Classic Wooden Tube
This easy-to-build tube will give your scope a touch of 18th-century class.
By Tim Parker

Autoguiding Breakthrough: Celestron's NexGuide
A stand-alone autoguider for $300 that really works! Can it be true?
By Alan Dyer

The Backyard Sky: Spring
Explore the season's well-known and lesser-known deep-sky showpieces.
By Rod Mollise

Table of Contents
See what else April's issue has to offer.