Planetary imaging with an altazimuth Dobsonian

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No need of an equatorial plateform anymore!

We have long believed than field rotation prevented Dobsonian telescopes with an altazimuth tracking from taking images of planets (apart of very short videos). After one year of experience with a Skywatcher Flextube 305 I can assert that such instruments can make superb planetary telescopes without any limit, thanks to modern softwares.

This technic opens the way to much cheaper, much bigger, or even both, instruments.

Download my conference on the Rencontres du Ciel et de l’espace by clicking on the image below:

(Beware that this is an Open Office format: there will be some problems of display if you use Power Point)

 

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