68 results

Deep Sky

Winter Clusters Galore

The sky between the Big and Little Dogs may be poor in bright stars, but it’s rich in star clusters for small telescopes.

Celestial Objects to Observe

Open Clusters by the Season

Open clusters are popular targets for deep-sky observers, particularly when composed of varied-color stars. Here are some treats for scopes both large and small.

Celestial Objects to Observe

A Sampling of Star Clusters

You don't need a big telescope to be dazzled by deep-sky wonders, particularly if your target is one of the many lovely star clusters.

Celestial Objects to Observe

Nebulae of the Deep South

On a long-awaited tour of the southern Milky Way, Alan Whitman discovers many splendid sights in far-southern skies.

Deep Sky

Seeking Summer's Dark Nebulae

Amateur skygazers can spend hours roaming ghostly clouds of interstellar dust. You just need to know where to look.

urban observer

Deep Sky

Observing Secrets of Deep-Sky Objects Revealed

Here's how to hone your galaxy-hunting skills — and what to expect at the eyepiece.

Celestial Objects to Observe

RS Ophiuchi Finally Blows its Stack

This famous recurrent nova has just erupted for the first time in 21 years, reaching magnitude 4.8 on February 13th.

Deep Sky

When Will RS Ophiuchi Next Blow Its Stack?

This recurrent nova last went off in 1985. It could do so again almost any night. By catching this nova on the rise, you’ll help professional astronomers turn their “big guns” on it.

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