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The essential guide to astronomy / All Sky & Telescope (www.skyandtelescope.com) content is copyrighted. Please contact us for reuse permissions.

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    Vega is the brightest star in the west in early evening. Its little constellation Lyra extends to the left. Somewhat farther left is 3rd-magnitude Albireo, the beak of Cygnus.

    The post This Week’s Sky at a Glance, November 10 – 18 appeared first on Sky & Telescope.


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    As twilight fades, look low in the southwest for Saturn and Mercury.

    The post This Week’s Sky at a Glance, November 17 – 25 appeared first on Sky & Telescope.


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    When Fomalhaut is due south, you'll always find the first stars of Orion beginning to rise in the east, and the Pointers of the Big Dipper due north below Polaris.

    The post This Week’s Sky at a Glance, November 24 – December 2 appeared first on Sky & Telescope.


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    Now that the Pleiades and Aldebaran are up in due east, can Orion be far behind? Orion's entire iconic figure, formed by its brightest seven stars, takes about an hour and a quarter to cross the horizon below them.

    The post This Week’s Sky at a Glance, December 1 – 9 appeared first on Sky & Telescope.


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

    The post This Week’s Sky at a Glance, December 8 – 16 appeared first on Sky & Telescope.


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    As the Summer Triangle sinks in the west, Altair is the first of its stars to go. Start by spotting bright Vega in the northwest at nightfall. The brightest star above it is Deneb. Altair is farther to Vega's lower left.

    The post This Week’s Sky at a Glance, December 15 – 23 appeared first on Sky & Telescope.


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    Sirius, the Dog Star, sparkles low in the east-southeast after dinnertime. Procyon, the Little Dog Star, shines in the east to Sirius's left.

    The post This Week’s Sky at a Glance, December 22 – 30 appeared first on Sky & Telescope.


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    In the evening sky tonight, look lower left of the waxing gibbous Moon for Aldebaran, and upper left of the Moon for the Pleiades.

    The post This Week’s Sky at a Glance, December 29 – January 6 appeared first on Sky & Telescope.


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    Orion strides up the southeastern sky after nightfall in January. Above it glitters Aldebaran. Above Aldebaran are the Pleiades. Far left of them shines Capella.

    The post This Week’s Sky at a Glance, January 5 – 13 appeared first on Sky & Telescope.


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    Friday, January 12 • Sirius, the Dog Star, rises in the east-southeast around the end of twilight now, if you're near latitude 40° north (New York, Denver, Madrid, Athens). From such latitudes, Procyon — left of Sirius, by 2½ fists at arm's length — precedes it up; "Procyon" is from the ancient Greek for "before the dog." But if you're as far south as San Diego, the Gulf Coast, Jacksonville, […]

    The post This Week’s Sky at a Glance, January 12 – 20 appeared first on Sky & Telescope.


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    Sirius twinkles brightly below Orion in the southeast. Around 8 p.m. Sirius shines straight below Betelgeuse in Orion's shoulder.

    The post This Week’s Sky at a Glance, January 19 – 27 appeared first on Sky & Telescope.


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    The Moon, two days past first quarter, shines to the right of Aldebaran and lower left of the Pleiades. The Great Square of Pegasus is sinking in the west.

    The post This Week’s Sky at a Glance, January 26 – February 3 appeared first on Sky & Telescope.


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    The Winter Hexagon fills the sky toward the east and south these evenings. Start with brilliant Sirius at its bottom. Going clockwise from there, march up through Procyon, Pollux and Castor, Menkalinan and Capella on high, down to Aldebaran, then to Rigel in Orion's foot, and back to Sirius.

    The post This Week’s Sky at a Glance, February 2 – 10 appeared first on Sky & Telescope.


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    Sirius the Dog Star blazes in the southeast after dinnertime, the brightest star of Canis Major. Orion stands high to its upper right.

    The post This Week’s Sky at a Glance, February 9 – 17 appeared first on Sky & Telescope.


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    Now the waxing crescent Moon is easier to see in the west-southwest after sunset. Its curved side points the way down toward Venus.

    The post This Week’s Sky at a Glance, February 16 – 24 appeared first on Sky & Telescope.


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      Friday, February 23 • First-quarter Moon (exact at 3:09 a.m. on this date EST). For North America this evening, the Moon shines left or upper left of Aldebaran, and farther upper right of Orion, as shown here. The Moon occults Aldebaran in daylight or twilight for northern and western Europe, and in darkness for much of Russia; map and timetables. Saturday, February 24 • The Moon shines over Orion […]

    The post This Week’s Sky at a Glance, February 23 – March 3 appeared first on Sky & Telescope.


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