321–340 of 2,488 results
Annular eclipse

Celestial Objects to Observe

Where to Watch the October 14th Annular Solar Eclipse Online

If you can't see the annular solar eclipse in person, we've got some online viewing opportunities for you.

Jupiter and partially eclipsed Io, Oct. 5, 2023.. Sean Walker image.

This Week's Sky At a Glance

This Week's Sky at a Glance, October 13 – 22

The week's big event is the Moon stepping on the Sun on Saturday the 14th. But the Moon's not done. Several days later it steps squarely on the handle of the Sagittarius Teapot, then on Herman's Cross. Show-off. Image: S&T's Sean Walker resolves Io half lit as it slips into Jupiter's shadow.

Annular solar eclipse

Celestial Objects to Observe

When It's Eclipse Decision Time, How Do You Decide Where to Go?

Satellite imagery will prove invaluable in making decisions on the day of the annular solar eclipse.

Comet 12P/Pons-Brooks outburst

Celestial Objects to Observe

Comet 12P/Pons-Brooks (aka the "Millenium Falcon" Comet) Flares Again!

Comet 12P/Pons-Brooks has awakened again from its recent slumbers with a fresh outburst. It's now bright enough to see in a modest telescope.

Baily's beads

Celestial Objects to Observe

The History of Baily’s Brilliant Beads

Discover the observations of astronomer Francis Baily as he watched sunlight bead along the lunar limb during an 1836 annular eclipse.

Moon, Venus and Regulus at dawn, Oct. 10, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, October 6 – 15

A partial/annular eclipse of the Sun washes across the Americas on Saturday the 14th. Four days before, the waning Moon and Venus pair up in early dawn with Regulus glimmering between them.

Annular eclipse in 2014

Celestial Objects to Observe

DIY Weather Forecast for the October 14th Eclipse

The October annular eclipse is coming up, and the most important requirement will be clear skies. Here's how to forecast the weather.

Comet 103P/Hartley diffuse appearance

Celestial Objects to Observe

Comet Hartley Comes Home Again; Gegenschein-gazing

Get acquainted with Comet 103P/Hartley. It's been a dozen years since its last bright apparition. While you're at it challenge yourself to spot the elusive gegenschein.

Saturn and Moon on Oct 23-24

Sky Tour Astronomy Podcast

October Podcast: Jupiter & Saturn Dance at Dusk

This month’s big celestial news might be the annular solar eclipse that will be seen in the Americas, but everyone can share the fun of casual stargazing by streaming or downloading October’s Sky Tour astronomy podcast.

Moon with Jupiter and the Pleiades, Oct 1 and 2, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, September 29 – October 8

The Moon pairs with Jupiter, then the Pleiades, as it departs the evening sky. That leaves a dark-sky Milky Way crossing the zenith, where Cygnus the Milky Way Swan flies southward for fall.

Moon passing under Saturn in evening, Sept. 26-28, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, September 22 – October 1

The bright Moon steps eastwaed night by night under Altair, then Saturn, then the Great Square of Pegasus. Meanwhile, Deneb replaces Vega as the zenith star; welcome to fall.

Baily's beads

Celestial Objects to Observe

To Catch Beads of Sunlight, Here's Where You Should Head for October 14th's Annular Eclipse

Some eclipse-chasers will choose to view a “broken ring” and a long display of Baily's beads on October 14, 2023.

Venus, Regulus, and Mercury in early dawn, Sept 16, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, September 15 – 24

Comet Nishimura shines at its brightest... but don't be disappointed, we warned you. Meanwhile Jupiter outdoes Saturn as an evening light, and the Little Dipper dumps water into the Big Dipper.

Waning crescent Moon passing Venus at dawn, Sept 11-12, 2023Moon

This Week's Sky At a Glance

This Week's Sky at a Glance, September 8 – 17

Comet Nishimura teases us shyly low on the dawn horizon, then low on the dusk horizon. The Milky Way arches high across the evening sky, and Saturn invites your telescope.

Celestial Objects to Observe

Action-packed Sky: Saturn, Comet Nishimura, and More

September is Saturn's time to shine. We also check on Comet Nishimura — now at 5th magnitude and still brightening — and look forward to a dramatic asteroid occultation. Not to mention that Jupiter just took another hit.

Harvest Moon in 2023

Sky Tour Astronomy Podcast

September Podcast: Explore the Summer Triangle

Daylight hours are getting shorter in the Northern Hemisphere, which means the hours for stargazing are getting longer throughout September! So stream or download this month’s Sky Tour astronomy podcast for lots of great tips on what you can see this month in the evening sky.

Waning Moon and Jupiter around midnight, Sept 3-4, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, September 1 – 10

Vega culminates at the zenith around the end of twilight. Arcturus and the Dipper sink through the evening. Saturn and Jupiter rule the late-night hours, and Venus shines at dawn.

Cloud cover along the path of totality will be lesser toward the south

Celestial Objects to Observe

El Niño and the 2024 Total Solar Eclipse

What will the ongoing El Niño event do to the chance of cloud cover along the 2024 total solar eclipse track?

Observing

The Moon Is "Blue" This Wednesday...Or Is It?

If skies are clear this Wednesday, you'll see the full Moon — but it's not the "true" Blue Moon.

Full Moon and Saturn at opposition, Aug. 30, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, August 25 – September 3

Saturn comes to opposition. Vega crests at the zenith, while Arcturus declines in the west. Venus shines at dawn. Go out before dawn's very first light, and you get an Orion-starring preview of the evening sky at New Year's.