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Author: Alan Goldstein

Galaxies, Observing

101 Must-See Cosmic Objects: Maffei 1

Deep-Sky Objects, Galaxies

101 Must-See Cosmic Objects: The Sombrero Galaxy

Deep-Sky Objects

101 Must-See Cosmic Objects: Omega Centauri

Deep-Sky Objects, Observing

The sky’s top 10 colorful planetary nebulae

Galaxies

Looking for galaxies in all the wrong places

Deep-Sky Objects, Galaxies, Observing

These are the most peculiar galaxies you can observe

Deep-Sky Objects, Galaxies

Throwback: Observing peculiar galaxies, 40 years ago

Stars

Explore Earth’s history with help from the cosmos

Deep-Sky Objects

Set your sights on these lesser known galaxies, clusters, and nebulae

Deep-Sky Objects, Observing

Explore nearby deep-sky gems

Observing

An NGC primer

Galaxies

The “second 10” interacting galaxies

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