This Week's Sky at a Glance, August 12 – 20
This Friday, look lower right of the waxing gibbous Moon for the ever-changing Saturn-Mars-Antares triangle. Full Moon on Wednesday night.
This Week's Sky at a Glance, August 5 – 13
The crescent Moon poses with Jupiter low in the west in twilight Friday. Early next week, Mars passes 0.9° beneath Delta Scorpii, the brightest star in the head of Scorpius.
This Week's Sky at a Glance, July 29 – August 6
As summer goes on, Scorpius shifts westward from its high southern stance just after dark; Sagittarius moves in from the east. Prime time for Messier objects!
This Week's Sky at a Glance, July 22 – 30
Starry Scorpius is sometimes called "the Orion of Summer" for its brightness, its blue-giant stars, and its 1st-magnitude red supergiant (Antares).
This Week's Sky at a Glance, July 15 – 23
The Moon shines over Mars, Saturn, and Antares at dusk. And after Saturday's sunset, use binoculars to look for Venus — with fainter Mercury a bit above.
This Week's Sky at a Glance, July 8 – 16
The waxing crescent Moon shines in the west at dusk on Friday. Jupiter is the bright "star" at its upper left (for North America).
This Week's Sky at a Glance, July 1 – 9
Is your sky dark enough to see the Coma Berenices star cluster naked-eye? Spot Jupiter in the west after twilight this week and the cluster just above.
This Week's Sky at a Glance, June 24 – July 2
This is the time of year when the two brightest stars of summer, Arcturus and Vega, hang about equally high overhead shortly after dark: Arcturus in the southwest, Vega in the east.
This Week's Sky at a Glance, June 17 – 25
The Moon, Mars, and Saturn make a wide, flattish triangle Friday night. At nightfall, look for the Big Dipper hanging straight down in the northwest.
This Week's Sky at a Glance, June 10 – 18
Friday evening the Moon poses between Jupiter and Regulus. Turn binoculars on Jupiter, and you'll find the star Chi Leonis among the Galilean satellites.
This Week's Sky at a Glance, June 3 – 11
The Mars-Antares-Saturn triangle rises higher at dusk every night, and halfway between Mars and Jupiter stands Spica. Cassiopeia lurks low in the north.
This Week's Sky at a Glance, May 27 – June 4
The last-quarter Moon doesn't rise until around 2 a.m. It'll be between the Aquarius's dim spilling bucket and the dim Circlet of Pisces.
This Week's Sky at a Glance, May 20 – 28
The nearly full Moon looms low in the east-southeast at sunset and shines above Mars as twilight fades. How soon can you pick out Mars?
Mars Opposition: Best Showing in a Decade
At last, a fine Mars apparition: on May 22nd the Red Planet reaches opposition, shining almost as bright as Jupiter, and the planet makes its closest approach to Earth on May 30th.
This Week's Sky at a Glance, May 13 – 21
As twilight fades, look upper left of the first-quarter Moon for Regulus. Brighter Jupiter shines much farther to the Moon's left (for North America).
Mercury Transit: Everything You Need to Know
The littlest planet will cross the enormous Sun for viewers in most of the world.
This Week's Sky at a Glance, May 6 – 14
After sunset Saturday, catch the hairline crescent Moon just above the horizon. Bring out your scope to see a double-shadow transit on Jupiter Friday night.
Eta Aquariid Meteor Shower Reaches Its Peak
If you'd like to see bits of debris shed by Halley's Comet, then head out before dawn during the next few days.
This Week's Sky at a Glance, April 29 – May 7
The last-quarter Moon shines above Capricornus before dawn's first light. These evenings, the long, dim sea serpent Hydra snakes across the southern sky.
This Week's Sky at a Glance, April 15 – 23
Comet 252P/LINEAR is crossing Ophiuchus very high before the first light of dawn. The Moon Friday evening forms a gently curving row with Regulus and Jupiter.
