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Discussion: freakishly early sunset

in: Bash; Bash > 2015-12-09

Dec 10, 2015 4:33 AM # 
At least now it's getting later!
Dec 10, 2015 5:18 AM # 
Not very quickly though! On Monday, our sunset will be 1 minute later.
Dec 10, 2015 12:53 PM # 
I thought the winter solstice was always on December 21?
Dec 10, 2015 2:17 PM # 
The solstice is always the shortest day but the sunrise and sunset don't change direction at the same time, so the sun can set later but the day can still be shorter (the sunrise changes more than the sunset). The solstice date wobbles between the 21st and the 22nd.
Dec 10, 2015 2:25 PM # 
The explanation I found is that the length of the solar day (from solar noon to solar noon) isn't exactly 24 hours due to the tilt of the earth's axis and the not-quite-circular orbit around the sun. So, while solar noon is halfway between sunrise and sunset, solar noon doesn't correspond with noon on the clock.
Dec 10, 2015 3:01 PM # 
I always learn stuff on AP! If you google "sunrise Your Town", you'll find a table for December where you can see sunrise getting later faster than sunset is getting later.

This year our solstice is Dec. 21 just before midnight. Cristina's solstice in Norway is Dec. 22. Then it will be winter and there will be tons of snow for skiing.
Dec 10, 2015 4:07 PM # 
Here's a bunch more information, with illustrations:
(It also addresses why it's not the same in the summer - the latest sunset and earliest sunrise also don't correspond with the longest day, but are closer to the solstice.)
Dec 10, 2015 4:54 PM # 
Thanks - great explanation. I'm already making plans for how I'm going to use the extra 30 seconds we'll get in our solar day on Dec. 21!
Dec 10, 2015 8:05 PM # 
Bash, I think a lot of Norwegians will be very disappointed if your pronouncement about winter snow turns out to be false!
Dec 10, 2015 9:55 PM # 
30 seconds of extra riding time will be nowhere enough to try out that new 29er you are planning to buy. Your planning needs to go deeper....
Dec 10, 2015 10:14 PM # 
We get the extra 30 seconds on Dec. 21 when I will be skiing!

JayXC should have insulted my bike earlier in the fall when there was more time for me to test different ones.
Dec 11, 2015 3:11 AM # 
coach ld:
I think you still have lots of time, according to the weather network. We may be fall camping instead of winter camping on New Year's Eve. Maybe we could bike in.
Dec 11, 2015 4:01 AM # 
You're making me cry.

This discussion thread is closed.