Astronomy & telescopes glossary - Z

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Astronomy & Telescopes Glossary - Z

Zenith - The point in the sky directly overhead.

Zodiac - A band of 12 constellations along the ecliptic plane.

Zodiacal light - The slight glow in the sky near the horizon caused by light from the Sun that is reflected by tiny dust particles located in space.

Zoom Lens - Any lens that provides a variable focal length and magnification.

Guide to Amateur Astronomy, Planets and Constellations

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