This Week’s Sky At a Glance

Check out Sky & Telescope’s weekly observing update, Sky at a Glance, published every Friday. Not only do we provide simple sky maps and observing tips for the upcoming week, we also keep you up to date on the latest celestial events.

A winter article might focus on the dazzling Orion Nebula, where thousands of stars are forming in the cloud of gas and dust, only 1,300 light-years away. A spring article could guide you through the small patch of sky in the constellations Cygnus, Lyra, and Draco where the Kepler Space Telescope has found more than 1,000 exoplanets. And a summer article might be bombarded with meteors from the stunning Perseids, which grace us with their presence every August, while a fall article might highlight the lucky alignment of two or more planets in the evening sky.

No matter the week, take a look at Sky at a Glance to catch up on celestial current events.

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, June 22 – 30

  Friday, June 22 • The waxing gibbous Moon this evening shines with bright Jupiter to its lower left and fainter Spica to its lower right. Saturday, June 23 • The bright "star" with the Moon tonight is Jupiter. Although they look rather close together, Jupiter is currently 1,800 times farther away — and it's…

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, May 25 – June 2

  Friday, May 25 • As the waxing gibbous Moon crosses the sky tonight, Spica hangs below it, as shown in early twilight here. • The Arch of Spring spans the western sky in late twilight, arching over Venus. Pollux and Castor form the Arch's top; they're lined up over Venus roughly horizontally. Look well…

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, April 20 – 28

Friday, April 20 • This evening the dark limb of the crescent Moon will occult 4th-magnitude multiple star Nu Geminorum, in the feet of Gemini, for parts of the southern U.S. and points south. For rough time estimates at your location, interpolate between the time predictions in the April Sky & Telescope, page 48. Saturday,…

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, March 9 – 17

  Friday, March 9 • Just after twilight fades away this week, bright Sirius stands due south on the meridian. Sirius is the bottom star of the equilateral Winter Triangle. The Triangle's other two stars are orange Betelgeuse (Orion's shoulder) to Sirius's upper right, and Procyon to Sirius's upper left. • In early dawn Saturday…

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, February 23 – March 3

  Friday, February 23 • First-quarter Moon (exact at 3:09 a.m. on this date EST). For North America this evening, the Moon shines left or upper left of Aldebaran, and farther upper right of Orion, as shown here. The Moon occults Aldebaran in daylight or twilight for northern and western Europe, and in darkness for…

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, February 2 – 10

The Winter Hexagon fills the sky toward the east and south these evenings. Start with brilliant Sirius at its bottom. Going clockwise from there, march up through Procyon, Pollux and Castor, Menkalinan and Capella on high, down to Aldebaran, then to Rigel in Orion's foot, and back to Sirius.

This Week's Sky at a Glance logo

This Week’s Sky at a Glance, January 12 – 20

Friday, January 12 • Sirius, the Dog Star, rises in the east-southeast around the end of twilight now, if you're near latitude 40° north (New York, Denver, Madrid, Athens). From such latitudes, Procyon — left of Sirius, by 2½ fists at arm's length — precedes it up; "Procyon" is from the ancient Greek for "before…