Observing Basics: Finder Scopes

In this episode, learn how this small auxiliary telescope helps you better tour the night sky.
By | Published: September 25, 2012 | Last updated on May 18, 2023

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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Observing Talk
After you listen to the podcast and try to find the objects, be sure to share your observing experience with us by leaving a comment at the blog or in the Reader Forums.