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Mini-guidescope EAA B33 / Flame

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#1 Benschop

Benschop

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Posted 13 October 2021 - 09:57 PM

My autoguider is a QHY-5L-II with a Mini-Guidescope. Tossed it on the tripod, no tracking, for a quick EAA session

Sub-exposures 2 seconds... live-stacked in SharpCap Pro, B33 is visible after approx 20 seconds.

 

A 12" scope is the smallest diameter that I can clearly see B33 the Horsehead nebula visually without filters. 8" with an H-Beta filter.

A QHY Mini Guide Scope is 30mm (1.18") aperture, 130mm focal length. Light gathering area... 1.09 square inches.  vs a 12" scope, with 113 square inches.

 

Makes for a small rig to toss in the luggage on business trips.

 

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