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Sky & Telescope

@SkyandTelescope

The Essential Guide to Astronomy | We provide the world's leading compendium of information about the science and hobby of astronomy.

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linkhttp://www.skyandtelescope.org calendar_today18-03-2009 12:54:28

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The large constellation Centaurus abounds in deep-sky delights, including many fine open star clusters.
buff.ly/3ykMvF2

The large constellation Centaurus abounds in deep-sky delights, including many fine open star clusters. buff.ly/3ykMvF2
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The Moon is exactly first quarter midway between Tuesday and Wednesday evenings for skywatchers in the Americas. Regulus looks interested.
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The Moon is exactly first quarter midway between Tuesday and Wednesday evenings for skywatchers in the Americas. Regulus looks interested. buff.ly/4dBdso8
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Did you catch the aurorae last weekend? Share your images with us at buff.ly/3ygw10C.

This image was captured by Rob Mack from Bow, New Hampshire, using a Canon EOS R5 camera and a 24-to-70-mm lens at 10:00 p.m. on Friday.

Did you catch the aurorae last weekend? Share your images with us at buff.ly/3ygw10C. This image was captured by Rob Mack from Bow, New Hampshire, using a Canon EOS R5 camera and a 24-to-70-mm lens at 10:00 p.m. on Friday.
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An extreme (G5) geomagnetic storm hit Earth last weekend, delighting viewers as far south as Florida with green and red curtains of light.
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An extreme (G5) geomagnetic storm hit Earth last weekend, delighting viewers as far south as Florida with green and red curtains of light. buff.ly/4bhEwah
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The thickening crescent Moon shines just left of Pollux this evening. About twice as far to their right, Castor lies nearly on the same line. For skywatchers in the Central time zone, the lineup is perfect about an hour after full darkness.
buff.ly/4dBdso8

The thickening crescent Moon shines just left of Pollux this evening. About twice as far to their right, Castor lies nearly on the same line. For skywatchers in the Central time zone, the lineup is perfect about an hour after full darkness. buff.ly/4dBdso8
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Behyar Bakhshandeh posted this photo in S&T's photo gallery of the sunspot region 3664, which emitted coronal mass ejections - and created tonight's opportunity for aurorae!
Online Gallery: buff.ly/3UzCScV
Learn more about tonight's aurorae: buff.ly/4alap0m

Behyar Bakhshandeh posted this photo in S&T's photo gallery of the sunspot region 3664, which emitted coronal mass ejections - and created tonight's opportunity for aurorae! Online Gallery: buff.ly/3UzCScV Learn more about tonight's aurorae: buff.ly/4alap0m
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A severe geomagnetic storm has just hit Earth — which means we could see auroras tonight! Here’s what you’ll need to know.
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A severe geomagnetic storm has just hit Earth — which means we could see auroras tonight! Here’s what you’ll need to know. buff.ly/4alap0m
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Spot the thin Moon around sunset. As the light fades, watch for Capella to glimmer into view to the Moon's right. At some point shortly after dark, you'll find Vega and Capella standing at exactly the same height above the horizon. For how long will their heights be the same?

Spot the thin Moon around sunset. As the light fades, watch for Capella to glimmer into view to the Moon's right. At some point shortly after dark, you'll find Vega and Capella standing at exactly the same height above the horizon. For how long will their heights be the same?
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In honor of the Astronomical Society of Kansas City’s 100th anniversary, they would like to invite everyone to join them at ALCon 2024, Stars and All That Jazz!, this July in Kansas City!
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In honor of the Astronomical Society of Kansas City’s 100th anniversary, they would like to invite everyone to join them at ALCon 2024, Stars and All That Jazz!, this July in Kansas City! buff.ly/4bqcxEU
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Join us for the May 2024 episode of our monthly Sky Tour on YouTube where we track down three before dawn, keep alert for bits of ’s , and get to know the Swiss Army knife of the .
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Join us for the May 2024 episode of our monthly Sky Tour #astronomy #podcast on YouTube where we track down three #planets before dawn, keep alert for bits of #Halley’s #Comet, and get to know the Swiss Army knife of the #night #sky. buff.ly/4dorY2y
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Are you excited about Comet Tsuchinshan-ATLAS’s prospects for a bright appearance this autumn? Guess what? It’s already gorgeous.
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Are you excited about Comet Tsuchinshan-ATLAS’s prospects for a bright appearance this autumn? Guess what? It’s already gorgeous. buff.ly/4b3qzwy
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Is GRB 191019A a typical burst of gamma rays from a dying star, an anomalously long burst from colliding objects, or something else entirely?
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Is GRB 191019A a typical burst of gamma rays from a dying star, an anomalously long burst from colliding objects, or something else entirely? buff.ly/3WxCXR4
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The Arch of Spring spans the western sky in late twilight. Pollux and Castor form its top. Look to their lower left for Procyon, and farther to their lower right for Menkalinan and then Capella. On May 10th the Moon will start stepping through the Arch.
buff.ly/3wm77w4

The Arch of Spring spans the western sky in late twilight. Pollux and Castor form its top. Look to their lower left for Procyon, and farther to their lower right for Menkalinan and then Capella. On May 10th the Moon will start stepping through the Arch. buff.ly/3wm77w4
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The Great Diamond is a gigantic spring asterism. It now stands upright in the southeast to south after dusk. Start with Spica, its bottom. Upper left is brighter Arcturus. Almost as far upper right is Cor Caroli and lower right from there is Denebola.
buff.ly/3wm77w4

The Great Diamond is a gigantic spring asterism. It now stands upright in the southeast to south after dusk. Start with Spica, its bottom. Upper left is brighter Arcturus. Almost as far upper right is Cor Caroli and lower right from there is Denebola. buff.ly/3wm77w4
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After sunset, use binoculars to try for one last look at Jupiter. It's just above the west-northwest horizon in twilight. If you succeed, you will be among the last few people to see planet in its 2023-24 apparition. Low in the brightening dawn, the crescent Moon passes Saturn.

After sunset, use binoculars to try for one last look at Jupiter. It's just above the west-northwest horizon in twilight. If you succeed, you will be among the last few people to see planet in its 2023-24 apparition. Low in the brightening dawn, the crescent Moon passes Saturn.
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You might be tempted to sleep through this annual shower but then you’d miss seeing some of the fastest meteors around. Not to mention their parent is the most famous comet of all.
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You might be tempted to sleep through this annual shower but then you’d miss seeing some of the fastest meteors around. Not to mention their parent is the most famous comet of all. buff.ly/4blgpr4
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