A Pair of Nice Nebulae
When you leave the planets, moons, and comets of our solar system behind, you enter the realm of the deep sky, a place of subtle glows and faint lights.
Hunting Asteroids From Your Backyard
You can discover an asteroid tonight. Digital technology and the CCD revolution have given amateurs the ability to do it. Here's how.
Satisfy Your Auroral Longing
If you don’t live in Alaska or Iceland, you can improve your chances of seeing an aurora — and maximize your amount of sleep — by monitoring the level of geomagnetic activity.
Observing Amazing Nebulae Season by Season
Nebulae are among the most beautiful sights in the night sky but their diffuse nature can make them challenging to locate. Here are a few interesting nebulae, and most are easy to spot.
Clusters of Clusters: Globular Pairings
Globular clusters are more concentrated in the direction of Sagittarius since that's where we find the center of the Milky Way. This area of the sky affords us opportunities to see several of these rich, ancient clusters in close proximity.
Six Globulars Near Antares
If you can find bright Antares in Scorpius, you can use our chart to find these half dozen globular star clusters with a telescope — and maybe even binoculars.
A Month of Moonwatching
Whatever its phase, the magnificent Moon has lots to offer.
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.
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.
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.
Ancient Thebit and Huygens's Sword
The absolute best example of a lunar fault is the Straight Wall. This well-known lunar feature is a long thin line that never fails to impress; even through a small telescope it's a fascinating sight.
What Is A Blue Moon in Astronomy?
Is Friday's full Moon "blue"? Depends on who you ask, but if someone answers yes, it's because of a mistake in a 1946 issue of Sky & Telescope.
Leading a Double (Star) Life
Double stars show us color combinations we seldom see anywhere else in the sky. Viewing these stellar twins yourself is fun and easy.
Seeing Double (Stars)
Spotting double stars is always a stargazing treat! Here are some targets to get you started.
Orion's Splendid Double Stars
Some of the finest double and multiple stars in the sky are on display as the constellation Orion, the Hunter, comes to prominence.
Pretty Double Stars for Everyone
Double stars can be found everywhere. Here's a selection of pretty doubles vislble when Orion the hunter is riding high in the sky.
More Pretty Double Stars
When the Milky Way is prominent, don't overlook the wealth of pretty double stars visible during this season.
Camcorder Timing Tips
Many households now possess a camcorder. Many amateur astronomers may be unaware that these devices are sensitive enough to record occultation events.
Occultations: The Fastest Things in the Sky
Watch in your telescope as the edge of the Moon snaps a star out of sight.
Southern Double-Star Gems
The treasure-filled skies of the Southern Hemisphere offer observers more than showpiece clusters and nebulae.