The night after Christmas sky show

Dec 26, 2011 by Dr. Tony Phillips
A Venus-Moon conjunction photographed in Nov. 2011 by Thad V'Soske of Fruita, CO. The "Night After Christmas" conjunction will look about the same. Copyright: T. V'Soske/Cosmotions.com

T'was the Night after Christmas and all through the house, not a creature was stirring ...

...because everyone was outside watching the planets align?

It's true. On Dec. 26th, the night after Christmas, Venus and the slender crescent Moon will gather for a jaw-dropping conjunction in the western sky.

The action begins shortly before sunset. Around 4:30 pm to 5:00 pm local time, just as the sky is assuming its evening hue, Venus will pop into view, glistening bright in the deepening twilight. No more than 6 degrees to the right lies the crescent Moon, exquisitely slender, grinning like the Cheshire cat with his head cocked at humorous attention. This is a wonderful time to look; there are very few sights in the heavens as splendid as Venus and the Moon gathered close and surrounded by twilight blue.

But don't go inside yet, because the view is about to improve. As the sky fades to black, a ghostly image of the materializes within the horns of the lunar crescent. This is caused by Earthshine, a delicate veil of sunlight reflected from our own blue planet onto the dusty-dark lunar terrain. Also known as "the Da Vinci glow," after who first understood it 500 years ago, Earthshine pushes the beauty of the conjunction over the top.

Meanwhile, Jupiter will be looking down on it all from a perch overhead in the constellation Pisces. In ascending order, Jupiter, Venus and the Moon are the three brightest objects in the , able to pierce city lights and even thin clouds. Almost everyone, everywhere will be able to see them.

Although no telescope is required to enjoy the show, if one happens to be under your Christmas tree, take it outside. With a simple triangular sweep, you can see the clouds and moons of Jupiter, mountains and craters on the Moon, and the fat gibbous form of Venus. (Like the , Venus has phases, and at the moment she is 83% illuminated.) Rarely can so much amateur astronomy be done with so little effort.

Some people find the after Christmas to be a bit of a letdown. This year, it's not so bad.”

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User comments : 4

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CapitalismPrevails
1 / 5 (1) Dec 26, 2011
Will this be a sign for the Muslims?
omatumr
1.8 / 5 (4) Dec 26, 2011
See today's news item on a plasma cloud headed this way

www.volkskrant.nl...de.dhtml

http://translate....de.dhtml
RonPaul1
1 / 5 (1) Dec 26, 2011
The title should be, "The night after Yuletide sky show".
Razzbar
not rated yet Dec 26, 2011
Why Yuletide? Because it is more secular than Christmas? Yuletide is a lesser defined, less known period of time, whereas Christmas is known almost universal as being a specific day. Meanwhile, I'm headed out to enjoy the show!

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