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Moon passing Mars in Gemini, May 15-16, 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, May 14 – 22

The crescent Moon waxes across the evening sky, pairing with Mars in upright-standing Gemini and then, four days later, with Leo's forefoot Regulus. In a telescope, Jupiter and Saturn are becoming not quite so fuzzy as they gain more altitude in early dawn.

Moon, Mercury, Venus at dusk, May 12-13, 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, May 7 – 15

Mercury and low Venus adorn the west after sunset, with the crescent Moon soon to join them. Night brings the big Diamond of Virgo and Summer Triangle. Nova Cassiopeiae rebrightens. And Comet Atlas is in evening view with a 6-inch telescope.

Moon with Jupiter and Saturn at dawn, May 3-5, 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, April 30 – May 8

Mercury and Venus now show themselves better at dusk. After dark, Comet Atlas awaits telescopic skyhunters. And the waning Moon passes under Saturn and Jupiter in early dawn.

Venus and Mercury barely above the sunset horizon, April 25, 2021

Celestial News & Events

This Week's Sky at a Glance, April 23 – May 1

Day by day, Venus and Mercury creep up from the sunset horizon in bright twilight. High above as twilight fades away, trace out the Arch of Spring arching high over Mars. Meanwhile Arcturus dominates the east.

Moon crossing Leo, April 21-22, 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, April 16 – 24

The waxing Moon this week steps out of Taurus past Mars, across Gemini and Cancer, and into Leo. Sirius and Procyon remain in the southwest after dusk. Jupiter and Saturn shine in early dawn.

Crescent Moon with Aldebaran and Pleiades, April 15-16, 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, April 9 – 17

Arcturus ascends in the east as Sirius sinks in the southwest. Orion tilts further as the Dipper rides high. And this week Mars threads the horntips of Taurus, closely followed by the crescent Moon.

The waning Moon passes under Saturn and Jupiter at dawn, April 6-7, 2021

Celestial News & Events

This Week's Sky at a Glance, April 2 – 10

Winter stars in the west are giving way to spring stars in the east, while little Mars shines on. Meanwhile, the waning Moon passes under Jupiter and Saturn at dawn.

Saturn and Jupiter at dawn, early April 2021

This Week's Sky At a Glance

This Week's Sky at a Glance, March 26 – April 3

Fading Mars glows above orange Aldebaran high in the west after dark. Orion tilts into his spring posture, with his belt horizontal. Arcturus climbs up in the east.

Moon and Regulus, March 24-25, 2021

This Week's Sky At a Glance

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

The waxing Moon shines with Mars and Aldebaran on Friday evening the 19th. From there the Moon marches east day by day – first between the horn stars of Taurus, then across Gemini to sidle up to Castor and Pollux on the 22nd.

Moon passing Mars and Aldebaran, March 18-19, 2021

Celestial News & Events

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

The waxing Moon passes between Mars and Aldebaran in the evening sky. Arcturus, the "Spring Star," climbs up in the east, while wintry Orion tilts down in the southwest.

Jupiter, Saturn, Mercury, with Moon, March 9-10, 2021

Celestial News & Events

This Week's Sky At a Glance, March 5 – 13

Sirius shines high on the meridian right after dark, as Orion starts tilting westward. Mars keeps company with the Pleiades. And three planets help you greet the dawn.

Mars with Aldebaran and Pleiades, March 4, 2021

Celestial News & Events

This Week's Sky at a Glance, February 26 – March 6

Mars is passing the Pleiades. Sirius and Canis Major take over the early-evening meridian from Orion. And low in the dawn, Jupiter closes in on Mercury.

Celestial News & Events

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

Sirius the Dog Star blazes high in the southeast after dinnertime, the brightest star of Canis Major. Spot it lower left of Orion. The stars of Canis Major can be connected to form a convincing dog profile.

Moon passing Mars and Aldebaran, Feb. 18-20, 2021

Celestial News & Events

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

The Moon, waxing through first quarter, passes Mars and Aldebaran high in the evening sky.

Moon and Antares at dawn, Feb 5-7, 2021

This Week's Sky At a Glance

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

The sky's biggest asterism — at least the biggest one widely recognized — is the Winter Hexagon. It fills the sky toward the east and south these evenings. Start with brilliant Sirius at its bottom. . .

Moon and Antares at dawn, Feb 5-7, 2021

Celestial News & Events

This Week's Sky at a Glance, January 29 – February 6

Once the night is fully dark, spot the equilateral Winter Triangle in the southeast. Sirius is its brightest and lowest star. Betelgeuse stands above Sirius by about two fists at arm's length. To the left of their midpoint is Procyon. Compare their colors!

Moon, Aldebaran, Pleiades Jan 22-24, 2021,

This Week's Sky At a Glance

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

Right after dark, face east and look very high. The bright star there is Capella, the Goat Star. To the right of it, by a couple of finger-widths at arm's length, is a small, narrow triangle of 3rd- and 4th-magnitude stars known as "the Kids." Though they're not exactly eye-grabbing, they form a never-forgotten asterism with Capella.

Moon passing Mars, Jan 20-21, 2021

This Week's Sky At a Glance

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

Bright Capella high overhead, and equally bright Rigel in Orion's foot, have almost the same right ascension. This means they cross your sky’s meridian at almost exactly the same time. So whenever Capella passes the zenith, Rigel marks true south, and vice versa. That happens around 9 or 10 p.m. now.

Celestial News & Events

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

Twilight challenge: the planet-conjunction finale! Jupiter and Saturn are becoming ever harder to pick up low in bright twilight, but bring those binoculars on Saturday Jan. 9th. Because then they'll be three! Mercury is emerging to join them. It will pass by them for a couple more days.

This Week's Sky At a Glance

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

As Jupiter and Saturn continue to draw apart, they're sinking ever lower in the southwest in twilight. How much longer can you keep them in view?

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