Looking into sunrise/sunset times has me chasing down a rabbit trails when the clock is quickly clicking to Christmas. Lene’s Dances with Wool Dec 22 post took me on an even longer jaunt trying to wrap my mind around the vast variances in sunlight/darkness around the Northern Hemisphere. (basing it only on the NH since this is where I live.)
My simple explanation of the sun rising later each morning until January 7th while it is setting a tad earlier each day has generated plenty of interest. Really, it’s fascinating stuff, as a young friend will say. The earth tips 23.5 on its axis in relationship to the sun. As it orbits around the sun, this tilt makes all the difference in the world (heehee) between what time the sun rises and sets in your latitude and longitude and how long it may take for the days to lengthen, how quickly the time reverses in both directions. (I’m at the latitude and longitude of 45°2′31″N 122°40′2″W)
(Taken at 10:17 am on Dec 21 , when the fog was finally lifting.)
Where Lene lives near the Arctic Circle in Finland there are the sun rises and set at the same time for 3 days: Dec 21, 22, and 23rd – which they call the Nesting Days. After which the days lengthen at both ends. Finland is on the sunward side of the tilted planet.
Point Barrows, the northernmost town in Alaska is on the dark side of the tilt during the winter months, thus they have an even longer period of Nesting.
On Nov 21, 2011, the sun rose at 12:54pm and set at 1:38pm and there it will continue to rise and set at the same time until Jan 21, 2011! Two dark months with scarcely one and a half hours daily of the sun skimming the horizon. Once that date is hit the change is very rapid there in Point Barrow, within three days the sun will rise at 12:08 pm and set at 2:59.
Fascinating stuff!View down our road at 10:45 am yesterday morning. We had a number of errands to run and so loaded the pickup and drove from our mostly sunny small valley (due to a ridge on the east the sun actually rose yesterday at 9:14, and sank behind the southwest ridge shortly before 3:30pm)
Looking towards the Abiqua Basin, picture taken about 5 miles from our place at 11:04am.As we headed further west into the Willamette Valley the fog became denser, skimming the ground. Later we drove north to Portland and passed through areas of frozen fog (not snizzle) where the temperature never got above 33F, finally reaching sunny and warmer Portland. How varied the weather in a relatively small area!
Tomorrow daughter and s-i-l, Aurora and Haymaker will be coming over for an early Christmas Eve dinner followed by attending the evening service at our Friends’ church in this village. Tonight we’re heading over to Haymaker’s parent’s to celebrate our granddaughter, Gail’s birthday. I need to stop here, run to town to pick up eggs I forget to get while out and about yesterday, bake brownies to take tonight and a pecan pie for tomorrow. I’ll wait until tomorrow morning to make rolls and all the other items for the dinner. There are still presents to be wrapped and some laundry to tend. Good times!