Exploration

Moon Filters Compared: Neutral Density, Polarizing, and Variable Filters

Moon Filters Compared: Neutral Density, Polarizing, and Variable Filters

A practical comparison of neutral density, polarizing, and variable polarizing filters for lunar observing, with guidance on matching filter strength to telescope...

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How to Identify Lunar Maria and Major Craters with a Backyard Telescope

How to Identify Lunar Maria and Major Craters with a Backyard Telescope

This practical guide shows how to move from the Moon’s naked-eye dark patches to named maria and major craters using a simple map, patient alignment, and a short...

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