Live webcasts of astronomical events aren't new. Travel-impaired viewers have watched solar eclipses for years. Here's something new: Now you can watch the winter solstice via the Internet.
A posting on the sundial mailing list by Michael J. Harley, and then forwarded to me by Richard Koolish, explains that there will be a live webcast of the solstice sunrise at Newgrange in Ireland.
The Newgrange monument is an ancient, massive stone structure that has a portal aligned such that sunlight on the winter solstice reaches the far end of a long passageway.
The live feed — made possible by Heritage Ireland — was this morning (sorry, I got the message about an hour ago), but you can also catch it Saturday morning, which will be closest to the actual time of the Sun's southernmost declination at 1:08 a.m. EST. The webcast begins at 3:30 a.m. EST, which is 8:30 Greenwich time (or Universal Time). Sunlight should be visible in the passage 8:58 to 9:15 a.m. GMT.
Comments
Joseph Roy D. North
December 21, 2007 at 1:59 pm
The winter solstice in general is defined - NOT as "the actual time of the Sun's southernmost declination" - but
as when the Sun's apparent celestial longitude is 270
degrees (ref.: THE ASTRONOMICAL ALMANAC FOR THE YEAR 2007),
I believe!
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