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This Week's Sky At a Glance

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

Jupiter and Saturn rise in twilight this week. Mars is a fire-beacon high in the southeast by the beginning of dawn. Venus, low as dawn begins to brighten, passes just 1° from Aldebaran on Saturday and Sunday mornings July 11th and 12th.

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This Week's Sky At a Glance

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

This is the time of year when the two brightest stars of summer, Arcturus and Vega, are equally high overhead at dusk. Arcturus is toward the southwest, Vega is toward the east.

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This Week's Sky At a Glance

This Week's Sky at a Glance, June 26 – July 4

Every morning now, Venus is getting a little higher and easier to spot in the east-northeast as dawn brightens

Crescent Moon near Gemini

This Week's Sky At a Glance

This Week's Sky at a Glance, June 19 – 27

Leo the Lion is mostly a constellation of late winter and spring. But he's not gone yet. As twilight ends look due west, somewhat low, for Regulus, his brightest and now lowest star: the forefoot of the Lion stick figure. The Sickle of Leo extends upper right from Regulus. The rest of the Lion's constellation figure extends for almost three fists to the upper left, to his tail star Denebola, the highest. He'll soon be treading away into the sunset.

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This Week's Sky At a Glance

This Week's Sky at a Glance, June 12 – 20

As we count down the days to official summer (the solstice is June 20th), the big Summer Triangle shines high and proud in the east after dark. Its top star is bright Vega. Deneb is the brightest star to Vega's lower left. Look for Altair farther to Vega's lower right.

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This Week's Sky At a Glance

This Week's Sky at a Glance, June 5 – 13

FRIDAY, JUNE 5 ■ Catch Mercury in twilight! It's under Pollux and Castor this week, as shown below. Mercury is ending its last good evening showing until winter 2021. Mercury is still visible in the western twilight, under the heads of Gemini, but it's fading. This scene is drawn for…

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This Week's Sky At a Glance

This Week's Sky at a Glance, May 29 – June 6

Bright Capella is still up in the northwest in twilight, but it sets in the northwest fairly soon after dark. That leaves Vega and Arcturus as the brightest two stars in the evening sky. Both are magnitude 0. Vega shines in the east-northeast. Arcturus is very high toward the south.

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This Week's Sky At a Glance

This Week's Sky at a Glance, May 22 – 30

Venus is a super-thin crescent as it plunges down to the sunset horizon this week. Bring out the telescope and/or binoculars. Mercury, also in the western evening twilight, is a tiny "half Moon" with a much less intense surface brightness.

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This Week's Sky At a Glance

This Week's Sky at a Glance, May 15 – 23

Catch Venus and Mercury in conjunction on the 21st, only 1° apart, in twilight for North America. That's about the width of a pencil held at arm's length. Think photo opportunity!

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This Week's Sky At a Glance

This Week's Sky at a Glance, May 8 – 16

Pollux and Castor form the top of the enormous Arch of Spring. To their lower left is Procyon, the left end of the Arch. Farther to their lower right is the other end, formed by Menkalinan (Beta Aurigae) and then brilliant Capella.

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This Week's Sky At a Glance

This Week's Sky at a Glance, May 1 – 9

Look high in the west for Pollux and Castor, the heads of the Gemini twins. They form the top of the enormous Arch of Spring. To their lower left is Procyon, the left end of the Arch. Farther to their lower right is brilliant Capella.

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This Week's Sky At a Glance

This Week's Sky at a Glance, April 24 – May 2

Astronomy is an outdoor nature hobby. For an easy-to-use constellation guide covering the whole evening sky, use the big monthly map in the center of Sky & Telescope magazine.

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This Week's Sky At a Glance

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

Venus continues to blaze in the west during and after twilight. This evening it's passing north (upper right) of Aldebaran.

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This Week's Sky At a Glance

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

Right after dark, look southwest and find Procyon high above brilliant Sirius. Look upper left of Procyon by 15° for the dim head of Hydra.

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This Week's Sky At a Glance

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

Venus shines in the edge of the Pleiades, as shown above. How soon before the end of twilight can you first begin to see the little cluster?

Moon passing Venus at dusk, March 26-28, 2020

This Week's Sky At a Glance

This Week's Sky at a Glance, March 27 – April 4

Venus and the waxing crescent Moon shine in the west during and after twilight. As night deepens, you'll find the Pleiades a little above Venus.

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This Week's Sky At a Glance

This Week's Sky at a Glance, March 20 – 28

Venus is the big, bright "Evening Star" high in the west at dusk. Jupiter, Mars and Saturn are low in the southeast in early dawn.

In early dawn, watch the waning Moon step toward and then past Jupiter, Mars, and Saturn -- March 16-20, 2020..

This Week's Sky At a Glance

This Week's Sky at a Glance, March 13 – 21

Venus continues to shine high in the west at nightfall for many weeks on end. But as the season advances, its starry background slides toward the lower right behind it. For instance not long ago the Pleiades were very high above it, but as of this evening they're 20° apart.

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This Week's Sky At a Glance

This Week's Sky at a Glance, March 6 – 14

This week, see Mars, Jupiter, and Saturn lined up diagonally low in the southeast as dawn begins.

This Week's Sky At a Glance

This Week’s Sky at a Glance, February 28 – March 7

Venus shines near the Moon and Betelgeuse is brightening again — find other night sky sights in this week's roundup.

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