This Week's Sky at a Glance, June 24 – July 2
The crescent Moon returns to the evening, crossing Leo. The five-planet lineup continues at dawn; catch it while you still can. And for skywatchers at northern latitudes, we're entering noctilucent cloud season.
This Week's Sky at a Glance, June 17 – 25
The five naked-eye planets form a diagonal line in the dawn this week — in order of their distance from the Sun, no less. And the waning Moon visits each one in turn, day by day.
This Week's Sky at a Glance, June 10 – 18
The waxing gibbous Moon shines with Spica, then occults Delta Scorpii. Meanwhile, all seven planets other than Earth are forming into a diagonal line across the east to southeast at dawn.
This Week's Sky at a Glance, June 3 – 11
For three nights running, the waxing Moon will pose equidistant from the two brightest stars of Leo. The Cassiopeia W lies exactly level in the north. And for that to happen, Kochab has to be straight above Polaris.
This Week's Sky at a Glance, May 27 – June 4
The crescent Moon passes Pollux and Castor in the western twilight. Jupiter aligns with Mars in the dawn, then they edge apart. And a strong new meteor shower will either happen or it won't!
This Week's Sky at a Glance, May 20 – 28
The advancing spring sends Vega high and Capella low. The Coma Berenices cluster glitters shyly way up, big and dim. Glance up anytime to check on changing Beta Lyrae. And now in the dawn, Jupiter aligns with Mars.
This Week's Sky at a Glance, May 13 – 21
The Moon becomes totally eclipsed, Corvus eyes Spica, Draco eyes Vega, and the last star of the rising Summer Triangle clears the horizon.
This Week's Sky at a Glance, May 6 – 14
The Moon aligns with Pollux and Castor – but how precisely for you? Three zero-magnitude stars form a far-flung spring triad. And with Libra and Bootes up, the two oldest things you will ever see await your binoculars or scope.
This Week's Sky at a Glance, April 29 – May 6
Mercury passes the Pleiades at dusk. Jupiter passes Venus in the dawn as Mars and Saturn watch. And can you name the three brightest stars of these spring nights? Hint: They're all magnitude zero.
This Week's Sky at a Glance, April 22 – 30
Arcturus, Spica, and Corvus put on their spring show. The Pointers point straight down at nightfall, which means Leo walks the high south and the Arch of Spring spans the west.
This Week's Sky at a Glance, April 15 – 23
Orion descends, Leo walks sideways, the Dog Stars stand up straight, the Moon wanes past full, and at dawn, Jupiter, Venus, Mars, and Saturn form a diagonal straight line.
This Week's Sky at a Glance, April 8 – 16
The gibbous Moon passes through Leo and Virgo as it waxes toward full, forming new Moon-and-stars "lunarisms" (patterns) each evening. Mercury begins a new apparition in the sunset. At dawn, Jupiter emerges to join the lineup of Venus, Mars, and Saturn.
This Week's Sky at a Glance, April 1 – 9
The evening Moon climbs toward the Arch of Spring, then through it. Orion's Belt levels, the Leaps of the Gazelle cross the zenith, and Saturn and Mars conjoin near brilliant Venus in early dawn.
This Week's Sky at a Glance, March 25 – April 2
What constellation trots behind Sirius and Canis Major across the southern sky? Puppis, not a puppy but the poop deck of Argo Navis. In this dark of the Moon, try for the Clown-Face Nebula high in Gemini. And the three dawn planets dance through two more isosceles triangles.
This Week's Sky at a Glance, March 18 – 26
Sirius sparkles on the corner of the Meat Cleaver, two open clusters hide under the Cleaver's handle, Orion's Belt levels out for the turning of spring, and Venus, Mars and Saturn slow-dance at dawn.
This Week's Sky at a Glance, March 11 – 19
Sirius, bright dogtag of Canis Major, offers observing challenges day and night. The Big Dipper balances Cassiopeia, and the nearly full Moon occults a Leo star.
This Week's Sky at a Glance, March 4 – 12
Evenings see the crescent Moon return, Sirius at its peak in the south, and the Dipper and Cassiopeia in balance toward the north. For planets, look to the dawn.
This Week's Sky at a Glance, February 25 – March 5
As the winter Milky Way rides high, open star clusters near and far, and from compact to sparse, await your binoculars or telescope, At dawn catch the Venus-Mars pair, and try for the closer Mercury-Saturn pair lower down.
This Week's Sky at a Glance, February 18 – 26
With the Moon gone from the evening sky, trace out Monoceros the Unicorn walking behind Orion. Spot the famous binocular star clusters at his eye and horn-tip, and don't miss M41 under Sirius. Meanwhile, the waning Moon, passes Venus, Mars and Mercury at dawn.
This Week's Sky at a Glance, February 11 – 19
The Winter Hexagon hosts the Moon. Then Castor and Pollux nail the Moon. Then the Little and Big Dog stars arc gracefully away from it. Meanwhile in early dawn, Mercury, Venus and Mars continue as a triangle low in the southeast.