1281–1300 of 2,482 results
Radiant of the Perseid meteor shower

Observing

Will You See a Bumper Crop of Perseid Meteors?

After the Moon sets on August 11–12, the Perseid meteor shower could be unusually rich.

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This Week's Sky At a Glance

This Week's Sky at a Glance, August 5 – 13

The crescent Moon poses with Jupiter low in the west in twilight Friday. Early next week, Mars passes 0.9° beneath Delta Scorpii, the brightest star in the head of Scorpius.

Observing

Comet 29P/Schwassmann-Wachmann 1 Blows Its Top . . . Again!

An otherwise faint and distant periodic comet underwent a bright outburst at the end of last month. Now it's visible in amateur telescopes at nightfall.

Perseid meteor

Observing

How to Photograph a Meteor Shower: Capturing the Perseids

Learn how to photograph a meteor shower with these step-by-step instructions, as well as advice for the advanced imager.

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This Week's Sky At a Glance

This Week's Sky at a Glance, July 29 – August 6

As summer goes on, Scorpius shifts westward from its high southern stance just after dark; Sagittarius moves in from the east. Prime time for Messier objects!

Mars-Saturn-Antares in August

Sky Tour Astronomy Podcast

Tour August's Sky: Planets Aplenty

Download or play Sky & Telescope's astronomy podcast, and you'll get a guided tour of the night sky. In early evening look for Mars and Saturn embedded in Scorpius toward south, and key an eye out for Perseid meteors.

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This Week's Sky At a Glance

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

Starry Scorpius is sometimes called "the Orion of Summer" for its brightness, its blue-giant stars, and its 1st-magnitude red supergiant (Antares).

Visibility zones for Two Occultations

Occultations

See Two Tricky Occultations — Neptune and Lambda (λ) Aqr

Now you see 'em, now you don't. Watch the Moon occult Neptune and nearby Lambda Aquarii on the same night.

Stargazer's Corner: Adventures Under the Night Sky

The Town-Sized Milky Way Project

I turned my town into a model of the Milky Way Galaxy for my high school astronomy project.

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This Week's Sky At a Glance

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

The Moon shines over Mars, Saturn, and Antares at dusk. And after Saturday's sunset, use binoculars to look for Venus — with fainter Mercury a bit above.

Land of Black and Light

Celestial Objects to Observe

Paddle the Milky Way's Dark River

Take an imaginary journey in a boat down the Milky Way's Great Rift, exploring rich star clouds and dark nebulae along the way.

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This Week's Sky At a Glance

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

The waxing crescent Moon shines in the west at dusk on Friday. Jupiter is the bright "star" at its upper left (for North America).

Phases of the Moon

Science-based Q&A

What are the Phases of the Moon?

The phases of the Moon are determined by the relative positions of the Moon, Earth, and Sun.

A donut shaped circle colored in green with red on its bottom right side, showing the aurora, over a night time map of the north pole, North America and Europe.

Observing

Aurora at Your Fingertips

A survey of free services and apps that let you keep tabs on space weather so you can anticipate the next great aurora.

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This Week's Sky At a Glance

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

Is your sky dark enough to see the Coma Berenices star cluster naked-eye? Spot Jupiter in the west after twilight this week and the cluster just above.

Mars, Saturn, and Antares in early July

Sky Tour Astronomy Podcast

Tour July's Sky: Planets on Parade

Sky & Telescope's astronomy podcast takes you on a guided tour of the night sky. In early evening look for Jupiter in the southwest, with Mars and Saturn embedded in Scorpius toward south.

Rich Cluster in a Rich Neighborhood

Observing

Midnight Meridian Morsels

Late June offers a grab bag of clusters and nebulae "lined up" at the midnight hour. Time your southern deep-sky viewing with meridian passage and you'll be a happy camper.

Stargazer's Corner: Adventures Under the Night Sky

Sketching Celestial Observations

Why, and how, you should sketch your observations through a telescope.

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This Week's Sky At a Glance

This Week's Sky at a Glance, June 24 – July 2

This is the time of year when the two brightest stars of summer, Arcturus and Vega, hang about equally high overhead shortly after dark: Arcturus in the southwest, Vega in the east.

Peewee and Papa

Astronomy and Stargazing Projects

Hunting White Dwarfs, the Night's Stellar Peewees

Take a trip down the rabbit hole to the weird and weighty world of planet-sized white dwarf stars.