81–100 of 457 results
Bootes and the Big Dipper

Celestial Objects to Observe

Meet Arcturus: Guardian of the Bear

Arcturus is one of the brightest stars in the sky — a cool red giant in Bootes, the Herdsman, that's often tied mythologically to Ursa Major, the Bear.

Moon over Sequoia National Park

Moon

International Observe the Moon Night Is Here

International Observe the Moon Night is here. Step outside Saturday evening and admire our closest celestial neighbor with your family.

Caroline's Cluster

Celestial Objects to Observe

Explore Caroline Herschel's Celestial Showpieces

More than 200 years ago Caroline Herschel pointed her telescope at the heavens and discovered some of the finest deep-sky objects. Follow in her footsteps and see them for yourself.

Planets

Ice Giants: Neptune and Uranus

Spot Uranus and Neptune, and relive the original discoveries.

NTB via Juno

Comets

Stormy Times on Jupiter, Comet Howell Steps Up, and More

Colder weather might be coming, but don't pack away that telescope! You'll miss a powerful storm that's remaking Jupiter's North Temperate Belt, a returning comet, Mira on the rise, and a bright supernova in the Great Bear.

Antares, imaged

Night Sky Sights

Meet Antares: The Star That Is Not Mars

Antares is a red supergiant that — like Betelgeuse — will one day go supernova.

Algol

Celestial Objects to Observe

Take a Roller Coaster Ride with Algol, a Fast Eclipsing Binary

How would you like to see a star drop two magnitudes in the time it takes to eat dinner? Easy to do. Just check out one of these fast eclipsing binaries — they'll make your head spin.

Looking back at Pluto

Celestial News & Events

Cool Off with Pluto This Summer

Pluto might be a challenging target but it's well worth the effort. Grab your telescope and see if you can spot this distant, chilly world.

people in a small boat pass in front of a large iceberg

Celestial News & Events

500 Days Until the Total Solar Eclipse Over Antarctica

Travel to the ends of the Earth to experience a special — but risky — total solar eclipse in Antarctica.

Sharing Comet NEOWISE

Explore the Night with Bob King

Comet NEOWISE Dazzles at Dusk

Comet NEOWISE has captivated skywatchers with its stunning tail. Now that it's moved into the evening sky and climbing higher each night even more people will get a chance to see it.

Comet NEOWISE

Celestial News & Events

Comet NEOWISE Delights at Dawn

Skywatchers are treated to a naked-eye comet as NEOWISE emerges into the the dawn sky.

Lemmon in bloom

Comets

Anticipation Grows for Comets NEOWISE and Lemmon

Two comets spark excitement for the coming week — NEOWISE might reach naked-eye visibility at dawn, while Lemmon will be visible in binoculars at dusk.

Two crescents meet

Occultations

Watch the Moon Pair Up with Venus on June 19th

Two crescents — the Moon and Venus — meet in the sky in the wee hours of June 19th.

Noctilucent clouds in British Columbia

Explore the Night with Bob King

Nights of Noctilucent Clouds

Noctilucent clouds shimmer high in the sky during summer twilight at northerly latitudes.

Ring Nebula

Explore the Night with Bob King

Evenings with the Ring Nebula

Everyone loves this cosmic donut. Like Saturn, the Ring Nebula is a must-see for beginners and seasoned amateurs alike. Whether you're just cutting your deep-sky teeth or attempting to see its central star — one of visual astronomy's Holy Grails — the Ring has it all.

Sun

95 Sunrises Along the Columbia Riverbank

Margaret Greenwood explores the changing location of sunrises throughout the year.

Venus-Jupiter conjunction

Celestial Objects to Observe

How Bright Are the Planets?

What do Venus and Jupiter have in common? Revisions to planets' magnitudes in this year's Astronomical Almanac have revealed some surprises.

Deep Sky

Globular Clusters Await: Hello, Messier 3!

Globular cluster season is here. Time to get out your charts, binoculars, and telescopes and enjoy these wondrous objects.

Whirlpool Galaxy

Deep Sky

See Spring's Finest Spiral Galaxies

Spring skies offer some of the best sights of spiral galaxies. Point your scope at some of these magnificent cosmic whirlpools.

Celestial Objects to Observe

See the Phases of Venus

If you have a set of binoculars or a telescope, watch for Venus’s thinning crescent over the next couple weeks.

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