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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

How-To
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Observing Basics: Finder Scopes

In this episode, learn how this small auxiliary telescope helps you better tour the night sky.
By Michael E. Bakich

A finder scope has a lower magnification than your main telescope so it can provide a wider view of the sky, which allows you to more easily star-hop your way from target to target. These instruments come with a label of AxB, where A is the magnification and B is the aperture of the finder scope's objective lens in millimeters. This designation is in the same format used by most binoculars.

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StarDome

Check out Astronomy.com's interactive StarDome to see an accurate of your sky. This tool will help you locate this week's targets.

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Learn how to use star charts, find constellations, and observe the brightest objects in your night sky with in this handy reference section.

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