The Longest Night of the Year: Celebrating the Winter Solstice

When the Sun has faded and darkness spreads across the wintery landscape, the best response is to celebrate it.  

Today, December 21, marks the Winter Solstice–the longest night and shortest day of the year, when the Earth’s North Pole is tilted farthest from the Sun during its orbit. Today also marks the astronomical beginning of the winter season–which is why, you may have noticed, it’s so cold.  Brrr.  

Take solace in the fact, though, that also from today, the days grow longer and the nights grow shorter until, come the Spring Equinox in March, daytime and night-time are perfectly balanced.  

Ancient cultures knew this, and found ways to celebrate the Solstice.  Rome had their Saturnalia celebration, which began on Dec. 17 and lasted seven days.  Scandinavia had the Feast of Juul, when a Yule log was burned to honor the god Thor.  And the Incas, in South America, celebrated (as some still do) the Festival of the Sun–although, being in the Southern Hemisphere, it fell not in December but in June.   

Here are some photos of costumes worn at winter celebrations around the world, from dangerousminds.net.  Stay warm, and enjoy.

“Lucifer and Little Devils,” Austria

 

Slovenia

 

Portugal

 

Switzerland

 

Finland

More Meteor Showers!

The Geminid Meteor Shower peaks this weekend, Dec. 13-14. The near-full moon will hamper viewing, so the shower may not be as spectacular as some predict.  

However, according to Space.com, you’ll still have a chance to catch some shooting stars between 6 and 7 p.m. on Saturday night–just before the moon comes up:

“Early Saturday evening, there is a fair chance of catching sight of some “Earth-grazing” meteors: long, bright shooting stars that streak overhead from a point near or just below the horizon.

“Such meteors are so distinctive because they follow very long paths nearly parallel to our atmosphere. In this year’s Geminids, look for meteors racing almost straight up from the northeast horizon to a point ending overhead.”

Happy viewing.

 

Comet Borisov Comes this Weekend!

Comet 2I/Borisov, the first-ever interstellar space comet, will sweep around the Sun this weekend.  On Dec. 28 it’ll have its closest approach to the Earth.

Borisov is remarkable because all other known comets have come from within our own solar system.  Borisov, in contrast, has travelled 100 million miles or so from some other solar system (scientists don’t know which one) to visit us. This Sunday it’ll slingshot around the Sun before beginning its return journey to . . . wherever.  

Comet Borisov, of course, reminds us of another famous Christmas comet–Comet Kohoutek, which caused such a stir when it swept around the Sun in December of 1973. Astronomers then wondered if Kohoutek might be an interstellar comet, too.  (It wasn’t.) An excellent and entertaining fictional account of Comet Kohoutek, I’m told, can be found in the novel THE NIGHT OF THE COMET, by Mr. George Bishop, Jr.

It’ll be too faint to see with the naked eye, but you can read more about it here at CNN.com, and track its path here at https://svs.gsfc.nasa.gov/4758