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Sky Tour Astronomy Podcast

Tour May's Sky: Jupiter Leads the Way

Sky & Telescope's astronomy podcast takes you on a guided tour of the night sky. Watch for Mars and Saturn near Scorpius before dawn and Jupiter near Leo after sunset.

First Look at the King of the Planets

Observing

Tips for a Successful Star Party

Planning a sidewalk stargazing event? Here are a few suggestions to make sure people walk away smiling.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, April 22 – 30

As night descends, look high in the west for Pollux and Castor - the heads of the almost-upright Gemini twins form the top of the Arch of Spring asterism.

Two For T

Variable Stars

Is T CrB About to Blow its Top?

The recurrent nova T Coronae Borealis last made a splash just after World War II. Does its current restive state hint at an imminent outburst?

Stargazer's Corner: Adventures Under the Night Sky

Binocular Stargazing Catalog

Wondering what to look at in the night sky with your binoculars? Start with this binocular stargazing catalog with 150 bright, deep-sky objects.

Sky & Telescope's Celestial Globe

S&T's Astronomy Products

Introducing Sky & Telescope’s Celestial Globe

Our state-of-the-art representation of the entire celestial sphere lets you explore the stars above as never before.

Mercury on April 15th

Observing

How to Spot Mercury in the Evening Sky

If you've never seen the fleet-footed planet Mercury, now is a great time to look for it in the evening sky after sunset.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, April 15 – 23

Comet 252P/LINEAR is crossing Ophiuchus very high before the first light of dawn. The Moon Friday evening forms a gently curving row with Regulus and Jupiter.

2006 Mercury transit closeup

Observing

Get Ready for May 9th's Transit of Mercury

It doesn't happen often, but soon you'll be able to "spot the spot" — Mercury's silhouette — as the innermost planet crosses the Sun's disk.

Mystery Dark Spot?

Uncategorized

Are You Game for April's Lunar Observing Challenge?

With astronomy being celebrated around the globe this month, join the fun by participating in a unique lunar observing challenge: track down 20 features once thought to show evidence of change from weather, geology, and even life.

Global Astronomy Month logo

Astronomy and Stargazing Projects

Celebrate Global Astronomy Month

Join the world’s largest celebration of astronomy — in person or via online webcasts of events — throughout April.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, April 8 – 16

Looking west in twilight, use the thin crescent Moon as your guidepost to Mercury. And have you tried yet for Comet 252P/LINEAR?

252P Drags its Tail

Celestial Objects to Observe

Up, Up, and Away with Comet 252P

With the Moon finally put to bed and Comet 252P still bright, there's no better time than now to see it. Nearby Mars and Saturn only sweeten the deal.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, April 1 – 9

Spring is here! Which means Arcturus shines brightly in the east. The Big Dipper, high in the northeast, points its handle toward it.

Viewing Mercury in April 2016

Sky Tour Astronomy Podcast

Tour April's Sky: Morning & Evening Planets

This month's astronomy podcast takes you on a guided tour of the night sky. You'll find Mars and Saturn near each other before dawn, while Jupiter and Mercury join the fading constellations of winter in the evening sky after sunset.

Stellar Fingerprints

Stellar Science

Spectral Types For Spring Nights

Hidden within the subtle hues of the stars are the keys to their temperatures and compositions. Get acquainted with the classic OBAFGKM spectral sequence through real stars you can see on a spring night.

Jupiter impact by John McKeon

Observing

Another Impact on Jupiter?

Two amateur videos shot early on March 17th show a brief but bright flash on the edge of Jupiter's disk. Did the King of Planets get whacked again?

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, March 25 – April 2

By 11 p.m., the bowl of the Big Dipper stands upside down over the bowl of the dim Little Dipper, as if dumping water into it.

Telescopic view of Comet 252P/LINEAR

Observing

Comet 252P Zooms North, BA14 Grows Tail

Splintered comet duo 252P/LINEAR and P/2016 BA14 liven up both dusk and dawn this week. Naked-eye 252P finally debuts in northern skies, while BA14 makes a beeline through the Big Dipper.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, March 18 – 26

As winter turns to spring, Orion declines in the southwest after dark with his Belt roughly horizontal. Equinox on Saturday.