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Telescope Mount
[ Telescope Mount ]

·Astronomy: Telescope Mount - MOTOR DRIVES
·Astronomy: Telescope Mount - Equatorial-ONE OR TWO MOTIONS
·Astronomy: Telescope Mount - Altazimuth Mount-WHICH MOUNT
·Astronomy: Telescope Mount - Aligned-GETTING ALIGNED
·Astronomy: Telescope Mount - CHOOSING A TELESCOPE MOUNT
 

 
  Accessory: Astronomy: Accessory - FINDING THING
Posted on Monday, November 29 @ 01:16:03 CST by astronomy
 
 
  Accessory

FINDING THING

Finderscopes are small, wide-field secondary telescopes mounted on the main telescope.

Many entry-level telescopes come with 5 x 24 finders—these give 5x magnification and have apertures of 24 mm. Their small lenses are fine for centering a telescope on a bright planet. If you want to locate fainter targets, however, consider upgrading to at least a 6 x 30 finder. For owners of 6 to 8 inch (150 to 200 mm) telescopes, an 8 x 50 finder is a better choice.

An accessory some people find wonderfully useful, either instead of or as well as a finderscope, is one of the new reflex finders, such as the Telrad. Looking through a reflex finder, you see a naked-eye view of the sky with a red dot or bull's-eye floating among the stars.

 
 
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