This Week's Sky at a Glance, March 28 – April 6
While waiting for sunrise on eclipse morning, can you catch Venus rising as a tiny, thin crescent? Go out earlier while the sky is still dark, and you get a preview of July evenings with Scorpius on the meridian.
This Week's Sky at a Glance, March 21 – 30
If you're in the US northeast or eastern Canada, start planning for the sunrise partial eclipse on March 29th! In the night sky the stern of the ship Argo is at its highest, abutting the stern of Canis Major.
This Week's Sky at a Glance, March 14 – 23
High overhead after dark, how accurately can you judge a celestial right angle? Watch the changing Castor-Pollux-Mars group to find out. Meanwhile the waning gibbous Moon will rise later and later, opening up dark-sky observing in the evening.
This Week's Sky at a Glance, March 7–16
A late-night total eclipse of the Moon highlights the coming week, and never mind that this is a minimoon. Sirius holds the meridian at nightfall, just as the Winter Triangle tips to balance on its brightest point.
This Week's Sky at a Glance, February 28 – March 9
The Moon passes four bright planets this week, starting as a thin crescent below Mercury on February 28th, passing by Venus this weekend, and visiting Jupiter and Mars later in the week.
This Week's Sky at a Glance, February 21 – March 2
Venus, after standing alone, is joined by the crescent Moon and low little Mercury in twilight late this week. Higher in the night, Jupiter and Mars continue in their distinctive triangles.
This Week's Sky at a Glance, February 14 – 23
Jupiter makes a triangle with Aldebaran and the Pleiades. Mars makes a nicer triangle with Pollux and Castor. The pre-dawn Moon hangs with Spica, then Antares.
This Week's Sky at a Glance, February 7 – 16
Watch the bright Moon step past Mars, Castor, and Pollux. They bunch up on Sunday evening the 9th. Then on Tuesday and Wednesday, "full moon" spans two evenings.
This Week's Sky at a Glance, January 31 – February 9
The waxing crescent Moon pairs up with Saturn, then Venus. On the night of the 5th the Moon occults some of the Pleiades. Looking wider, the Winter Hexagon fills much of the February sky.
This Week's Sky at a Glance, January 24 – February 2
Mars pulls away from Pollux this week. The winter Milky Way crosses the zenith. Lepus, the Hare under Orion's feet, offers a famous nearby double star and a rare winter globular cluster.
This Week's Sky at a Glance, January 17 – 26
Brilliant Mars, just past opposition, outshines its neighbors Pollux and Castor in the east. Venus and Saturn pull apart in the southwest. Orion dominates the high southeast after dinnertime, with searing white Sirius sparkling below it.
This Week's Sky at a Glance, January 10 – 19
After occulting the Pleiades last Thursday, the Moon will occult Mars for the continental U.S. on Monday evening, January 13th. In the southwestern twilight, Saturn and Venus draw together toward conjunction. Jupiter shines high.
This Week's Sky at a Glance, January 3 – 12
The waxing Moon passes Venus and Saturn, then next Thursday evening it occults the Pleiades! Sirius rises at nightfall, and Algol dips twice.
This Week's Sky at a Glance, December 27 – January 5
Jupiter, high in the east these evenings, highlights the Aldebaran region of Taurus. The crescent Moon pairs with Venus, then Saturn. Mercury is having its best dawn apparition of 2024.
This Week's Sky at a Glance, December 20 – 29
Orion now rises in twilight, seemingly enlarged by the Moon illusion. Venus, Saturn, Jupiter, and Mars span the evening sky. And here comes another weird pattern of Jupiter's moons.
This Week's Sky at a Glance, December 13 – 22
The full Moon will line up with Jupiter and Aldebaran . . . but how well for you? Saturn gets right (angled) with Fomalhaut and Venus. Saturn's two largest moons will form a double star, and three of Jupiter's moons will triangulate.
This Week's Sky at a Glance, December 6 – 15
The Moon this week shines with Saturn at first quarter, then with Jupiter when full. No surprise; the two giant planets are almost exactly 90° apart. Jupiter is at opposition, and Saturn is at quadrature.
This Week's Sky at a Glance, November 29 – December 8
This Wednesday evening, the crescent Moon will beautifully partner with Venus. And, for these next two weeks we get the earliest sunsets of the year.
This Week's Sky at a Glance, November 22 – December 1
Last call for Mercury! On the opposite side of the sky, Jupiter and Mars climb up ever earlier. And the waning crescent Moon occults Spica for eastern and central North America.
This Week's Sky at a Glance, November 15 – 24
Venus and Mercury continue as a duo in the western twilight this week. The Moon visits Jupiter, then Mars. Saturn shines lonely below the Great Square.
