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Venus, Antares, and Mercury in the eastern dawn, Dec. 30, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, December 29 – January 5

Scintillating Sirius rises ever earlier to scintillate in colors. The Quadrantid meteors in the Thursday-morning dark are well timed for Eastern North America. Two triangle constellations stack over Jupiter.

Moon nearly first quarter

Celestial Objects to Observe

Getting Started with Your New Telescope

How to start successfully with a new telescope — a guide to what you need to know, how to set it up, and things you can start finding with it in tonight's sky.

Gibbous Moon and Jupiter, Dec. 21-22, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, December 22 – 31

Christmas week this year puts the late-night Moon at the highest overhead you'll ever see it. High Jupiter lights the evening. Venus is the bright "star" lower in the east at dawn.

Jupiter, Ganymede, Europa and double shadows, March 25, 2019


Watch Jupiter's Moons in Unusual Lineups

You'll have five opportunities in the coming months to see Jupiter's moons in interesting alignments.

Crescent Moon passing Saturn at dusk, Dec. 17, 2023

This Week's Sky At a Glance

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

The waxing Moon passes Saturn, jumps over Jupiter, then jumps the Pleiades. Sirius and Procyon rise earlier, but the Summer Triangle still hangs on.

Vesta and Orion

Celestial News & Events

Vesta Sets Sail Across Orion

Look who's visiting this winter in Orion: Vesta, a bright asteroid with a dark side.

Geminids 2020

Explore the Night with Bob King

Get Ready to Greet the Geminid Meteor Shower!

The year's most spectacular meteor shower is upon us. Prepare to enjoy the Geminids under a dark, moonless sky, when you might see more than 100 meteors per hour.

Moon passing Venus at dawn, Dec 9-10, 2023

Celestial News & Events

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

The best meteor shower of the year peaks late Wednesday night. And if you're not positioned to see the tiny asteroid occult Betelgeuse Monday evening, watch by livestream!

Bright Venus and much fainter Spica in early dawn, Dec. 2, 2023 dawn,

Celestial News & Events

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

These moonless evenings open up the deep sky. For many of us the viewing is especially crisp through the low-humidity December air. The Big Dipper lies low, Cassiopeia stands high, and the Andromeda Galaxy crosses the zenith.

Auriga Taurus Gemini and Orion

Sky Tour Astronomy Podcast

December Podcast: A Tower of Brilliant Stars

This month’s Sky Tour podcast introduces you to a “tower of brilliance” in the eastern evening sky, along with tips for finding four planets and watching mid-December’s impressive Geminid meteor shower.

Moon passing Jupiter, Nov. 24-25, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, November 24 – December 3

This Tuesday the 28th we will see the Moon rise in twilight as far north as it possibly can. Do you know why?

Babylonian clay tablet recording eclipses


How Did the Ancients Predict Eclipses? The Saros Cycle

Before the advent of computers or even a working theory of the solar system, the ancients predicted solar eclipses. How did they do it?

Titania from Voyager 2


Watch Uranus's Moon Titania Cover a Star Monday Night

Observers across much of the U.S. and Canada have a unique opportunity Monday night, November 20–21, to see Uranus's brightest moon occult a star.

Celestial News & Events

This Week's Sky at a Glance, November 17 – 26

The bright gibbous Moon this week passes Saturn, then Jupiter, inviting telescopes of all sizes. And as winter approaches, Orion rises earlier and earlier.

GRS 2017 Juno

Explore the Night with Bob King

Jupiter's Great Red Spot Just Keeps Getting Smaller

Jupiter's Great Red Spot may be reaching a milestone this year by shrinking to its smallest size in recorded observational history.

First-quarter Moon passing Saturn at quadrature, Nov. 19-20, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, November 10 – 19

The crescent Moon slips down into the sunrise and then up in the afterglow of sunset, guiding the way to the last stars of Sagittarius right after dark. A few days later it passes Saturn.


Night Sky Sights

Meet Enif, the Nose of Pegasus

Enif, the nose of Pegasus, is a supergiant star and the brightest member of the constellation. Find out more about this star and its place in our skies.

Catch the Moon-Venus pairing at dawn Nov 9, 2023

This Week's Sky At a Glance

This Week's Sky at a Glance, November 3 – 12

The Great Square, now upright, guides your way down to Fomalhaut and Diphda and, farther down, Alpha Phoenicis – a chance to add a new constellation to your life list. And plan to catch the Moon-Venus pairing in early dawn on the 9th.

Starlink flares

Explore the Night with Bob King

How to See Freaky Starlink "Cluster Flares", Plus the Latest on Comet Lemmon

Alien invasion or flares from satellites in multiple orbits? It depends on your point of view. We also check in on Comet Lemmon, poised to possibly reach binocular-visibility.

Sky Tour Astronomy Podcast

November Podcast: Horse, Dolphin, Arrow, and Fish

With Jupiter and Saturn leading the way each evening, you can use this month’s Sky Tour podcast to track down some lesser-known constellations — and the most distant celestial object that you can see with just your eyes!