Monthly Archives: September 2017

  1. Guide to Light Pollution Filters

    A Guide to Light-Pollution Filters for Visual Astronomy

    Author: Brian Ventrudo Published: September 25, 2017 Add a Comment Discuss this article in the forums
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  2. The Agena AstroProducts Guide to Observing Uranus and Neptune

    The Agena AstroProducts Guide to Observing Uranus and Neptune

    Author: Brian Ventrudo Published: September 25, 2017 (Revised October 20, 2020) Add a Comment
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