Observing

Comet Lovejoy Brightens Quickly, Heads North

Terry Lovejoy's new comet has gone from faint to bright in just three weeks and is now a tempting binocular target at dawn.

Dog Eat Dog Pair

Observing

Sirius B — A New Pup in My Life

Here are some tips on you, too, can see Sirius B, the "Pup" of the Dog Star, Sirius A.

Bright Supernova Beckons

Observing

Bright Supernova Erupts in NGC 5643 in Lupus

A recently discovered supernova in Lupus now shines around magnitude +11.5, bright enough to see in a modest telescope. With photos and maps, we'll get you there. I wished I lived in Georgia and not just for the peach trees and warmer weather. No, I'd be able to get up early…

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, March 24 – April 1

Look up at the stars tonight and see the Little Dipper "pour" into the Big Dipper. Telescope users may try for Jupiter's moon in eclipse and Comet 41P.

Pointy Planet

Astronomy and Stargazing Projects

See an Ultrathin Venus Crescent

With Venus approaching inferior conjunction, don't miss the chance to see one of the thinnest Venus crescents of your life.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, March 17 – 25

Find the dim constellation Cancer on the traditional divide between the winter and spring sky. Last quarter Moon falls on Monday, March 20th.

Observing

Comet 41P/T-G-K Greens Up For St. Paddy's Day

Comet 41P/Tuttle-Giacobini-Kresak begins its best showing of the year this week as it slingshots across the Big Dipper into circumpolar skies.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, March 10 – 18

The Moon hangs a few degrees below Regulus this Friday evening, and Mercury begins to emerge from the glow of sunset by the end of the week.

Stargazer's Corner: Adventures Under the Night Sky

A Teachable Moment: When the Moon's Shadow Came to Angola

A solar eclipse provided the perfect teachable moment in Angola, as students learned about the real sizes and distances of Earth, the Moon, and the Sun.

Aldebaran occultation by Brad Timerson

Stargazer's Corner: Adventures Under the Night Sky

A Remarkable View of Aldebaran's Occultation

A lucky group of Canadian observers got to witness remarkable events as the Moon slid past Aldebaran on the night of March 4th.

Owl of Atlases Past

Observing

Constellations That Might Have Been

Obsolete constellations may be gone, but they're not forgotten. We revisit their brief glories and learn how to find them in the 21st-century sky.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, March 3 – 11

The Moon hangs below Aldebaran in the west this evening. But get ready for Saturday night, when the dark limb of the first-quarter Moon occults Aldebaran

Before-after views of iPhone red filter square

Stargazer's Corner: Adventures Under the Night Sky

A Better Red-Light Filter for Your iPhone

By tapping into some little-know settings, you can make your iPhone use a red screen all the time at night and preserve your dark adaptation.

Aldebaran occultation March 2017 map

Observing

Aldebaran's Disappearing Act on March 4th

On the night of March 4th, all you'll need are your eyes to watch the Moon occult Aldebaran. Better yet, place yourself on the graze line.

Covers of The Strolling Astronomer

Stargazer's Corner: Adventures Under the Night Sky

The Strolling Astronomer Celebrates 70 Years

Still active today, the Association of Lunar & Planetary Observers and its journal got their start on March 1, 1947.

Mercury and Venus in March 2017

Sky Tour Astronomy Podcast

Tour March's Sky: Venus Sinks, Mercury Rises

In this month's easy-to-download podcast, find out how you can spot Venus in both the evening and predawn skies.Late in March, Mercury makes an appearance.

Observing

Pushing Limits: A Spring Sky Double Star Romp

Push your telescope to the limit and put your eyes to the test with this series of tight-knit springtime double stars.

February 2017 annular mideclipse

Observing

Sunday's Annular Solar Eclipse: First Reports

Clear skies prevailed across Patagonia in South America, providing intrepid eclipse-chasers with beautiful views of February 26th's annular solar eclipse.

This Week's Sky at a Glance logo

This Week's Sky At a Glance

This Week's Sky at a Glance, February 24 – March 4

Sirius blazes high in the south these evenings, with bright Canopus due south below, and on Sunday, February 26th, Mars and Uranus are in conjunction.

Path of February 2017 annular eclipse

Observing

February 26th's Annular Solar Eclipse in 2017

Die-hard eclipse chasers have journeyed to the Southern Hemisphere to catch a short but dramatically thin "ring" eclipse of the Sun this weekend.