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how-do-light-pollution-filters-work https://www.astronomy.com/issues/2024/july-2024/ July 2024 Issue | Astronomy.com Take an in-depth look at artificial light at night. Plus, the joys of wide-field imaging and a guide to amateur astronomers’ favorite lunar features. https://www.astronomy.com/uploads/2024/07/ASY-SK0724_05-1.jpeg InStock USD 1.00 1.00 observing observing-basics article ASY 2024-07-31 2024-07-31 150225
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Astronomy magazine July 2024 cover

July 2024

The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level.
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Orion Nebula
Observing, Observing Basics

How do light pollution filters work?

Deep-Sky Objects

Tools for finding dark skies

The gegenschein rests at the tip of the dimmer pyramidal-shaped false zodiacal light.
Observing

The mysteries behind the gegenschein

LHC at CERN
Cosmology

Is there a hottest temperature possible in the universe?

galaxy cluster Abell 2744 as seen by JWST and the Chandra X-ray Observatory
Cosmology, Exotic Objects

Astronomers say they’ve spotted the oldest, most distant black hole. How do they know this?

E: Time’s Telescope was an almanac published in London from 1814 to 1834.
Science

The history of astronomical almanacs

Hubble image of variable star RS Puppis
Stars

How do Cepheid variables indicate distance?

The Moon

20 things to see on the Moon: An observer’s guide to lunar names

The summer Milky Way was photographed from a hilltop over the Modoc Plateau in California using ten 3-minute exposures and a Sigma Art 14mm lens. All photos were taken with a Nikon D750 DSLR, pre-processed in Adobe Bridge, and post-processed in Adobe Photoshop.
Astrophotography

How to take your own wide-field sky images

Telescopes and Equipment

See the hottest astronomy products of July

The bright skyglow from city lights can easily wash away the night sky, hiding the stars from view. But they are still there, shining — and we can reveal them with collaborations and initiatives underway around the world.
Science

The fight against light pollution

Mars and Comet C/2022 E3 (ZTF) in Taurus
Observing

July 2024: What’s in the sky this month?

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