21–40 of 96 results
full Moon

Celestial Objects to Observe

7 Easy Things to See on the “Supermoon”

Seven easy and rewarding targets to explore when the Moon is full.

Hubble photo of M3

Variable Stars

Hunting Barnard's Variable in the Globular Cluster M3

We beat a path through a forest of stars to find the first variable star ever discovered in a globular star cluster.

Solar System

Make the Most of Comet ATLAS

Bright comets will be scarce this year, but you can see one of the better ones this month as it races from Aquila to Canes Venatici. In other news, a new, bright nova has flared in Sagittarius.

Moon pairings in April 2021

Sky Tour Astronomy Podcast

April: Follow the Moon

To learn “what’s up” at night during April, download Sky Tour — an engaging narrated guide to the planets, stars, and constellations now visible.

NGC 3190 group / Hickson 44

Celestial News & Events

Exploring Bright Galaxy Groups in Leo

Leo, the Lion, stands high in the southern sky during the early spring. We visit some of the constellation's brighter galaxy clumps then go asteroid hunting.

Alnilam in Orion

Celestial Objects to Observe

Meet Alnilam, Orion’s Belt Buckle

Alnilam, the middle star of Orion's distinctive belt, is a distant supergiant that will (eventually) end its life in a supernova.

Battered Vesta

Celestial Objects to Observe

March — A Good Time to Visit Vesta

Dip into this easy guide to seeing the brightest asteroid, Vesta, and understanding what makes it unique.

Winter Hexagon (February)

Night Sky Sights

Watch the Moon Journey Across the Winter Hexagon

About once a month this winter, we can watch the Moon take a four-day journey across a field of stars termed the "Winter Hexagon."

IC 418 planetary nebula

Deep Sky

A Deep-sky Hippity-hop through Lepus, the Hare

Snare a dozen bright double stars and deep-sky objects in the celestial Hare the next clear night. We also provide details on how to watch the potentially hazardous asteroid Apophis occult a star the night of February 21st.

Star chart for Monoceros

Sky Tour Astronomy Podcast

February: The Hare & Unicorn

When you step outside to admire the crisp, starlit night sky on February evenings, bring along our Sky Tour astronomy podcast to learn which stars and constellations are overhead. Here’s a preview of what you'll see.

Castor and Pollux

Celestial Objects to Observe

Meet Castor, Six Stars in One

Castor, a prime ornament of the Gemini constellation and one of the brightest stars in the sky, is actually a system of stars with six unique members.

Comet 67P/Churyumov-Gerasimenko

Comets

Comet Watch 2021

If you own an 8-inch or larger telescope you might see more than a dozen new and returning comets this year, including one potential naked-eye candidate.

Deep-sky map Capella region

Explore the Night with Bob King

Foraging for Deep-sky Delights with Capella, the Goat Star

We explore deep-sky riches within a stone's throw of Capella, one of the season's brightest stars.

Kochab in the Little Dipper

Bright Stars

Meet Kochab, a Guardian of the Pole

Meet the stars: Kochab is no record-breaking bright star, but it's easy enough to find — and it may have played an important role through history.

The Hyades open star cluster

Sky Tour Astronomy Podcast

January: The Hyades & Pleiades

Start the new year right with the easy-to-follow stargazing highlights offered by our Sky Tour astronomy podcast. Here's a preview of this month's guided audio tour.

Leonid fireball crossing Orion

Night Sky Sights

The Best Meteor Showers in 2021

Sky & Telescope predicts that the year's best meteor shower will be the strong, fireball-rich Perseids in mid-August.

Aldebaran vs. the Sun

Celestial Objects to Observe

Meet Aldebaran, the Bull’s Eye

Learn more about Aldebaran, the red-orange giant star that "follows" the Pleiades across the sky.

Explore the Night with Bob King

Jupiter and Saturn Embrace in Solstice Conjunction

Jupiter and Saturn fashion the Great Conjunction of 2020 when they pair up on December 21st, the winter solstice. That evening they'll be closest in nearly 400 years.

Capella and the Kids

Bright Stars

Meet Capella, the Goat Star

Capella is the sixth-brightest star in the sky — and it's more than one star! The main two stars in the system are near-twins, bright yellow giants.

Cool blue world

Celestial News & Events

Tiny Asteroid Flora and Mighty Uranus Team Up

Both Uranus and the asteroid 8 Flora came to opposition on Halloween. Catch them both in the same corner of the sky the next clear night.

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