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Post by boombo on Dec 22, 2017 10:06:57 GMT -5
St. Petersburg is at 60N though, so a bit more exotic to her than a mere 55N lol.
I've actually never been further north at this time of year than where I live close to 54N, I'd certainly notice the days being shorter up at 60 but that midday sky doesn't look that bleak to me, maybe one level bleaker than what we've had here this week. I'd probably be more impressed seeing the midday sun only half as high as it is here, which is already low enough.
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Post by nei on Dec 22, 2017 10:48:34 GMT -5
St. Petersburg is at 60N though, so a bit more exotic to her than a mere 55N lol. I've actually never been further north at this time of year than where I live close to 54N, I'd certainly notice the days being shorter up at 60 but that midday sky doesn't look that bleak to me, maybe one level bleaker than what we've had here this week. I'd probably be more impressed seeing the midday sun only half as high as it is here, which is already low enough. Boke. I mixed up Moscow and St. Petersburg. Hermitage was placed in the capital of Russia, right? And the capital is Moscow. the decrease in daylight drops faster as you go north. So going from 50°N to 55°N feels less of a change than 55°N to 60°N. Today is all cloudy, looks more like what winter solstice should be to you? Can't notice the low sun angle with the clouds. I enjoyed the sunshine yesterday if only from a window and short walks for coffee and to buy lunch. |
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Post by boombo on Dec 22, 2017 10:59:39 GMT -5
St. Petersburg is at 60N though, so a bit more exotic to her than a mere 55N lol. I've actually never been further north at this time of year than where I live close to 54N, I'd certainly notice the days being shorter up at 60 but that midday sky doesn't look that bleak to me, maybe one level bleaker than what we've had here this week. I'd probably be more impressed seeing the midday sun only half as high as it is here, which is already low enough. Boke. I mixed up Moscow and St. Petersburg. Hermitage was placed in the capital of Russia, right? And the capital is Moscow. the decrease in daylight drops faster as you go north. So going from 50°N to 55°N feels less of a change than 55°N to 60°N. Today is all cloudy, looks more like what winter solstice should be to you? Can't notice the low sun angle with the clouds. I enjoyed the sunshine yesterday if only from a window and short walks for coffee and to buy lunch. I made a post here about how the amount of daylight decreases quicker the further north you go, though if you take twilight into consideration the difference in daylength between 54 and 60 is not massive compared to the summer. www.city-data.com/forum/37718296-post2813.htmlIt's probably easier to notice the difference between midday here and there in midwinter on a sunny day because of the much lower peak sun angle. |
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Post by nei on Dec 22, 2017 11:04:01 GMT -5
I remember Ben mentioning that a sun angle <20 degrees feels "non-existent" or "very weak". For shits and giggles, this is how long these cities at differing latitudes spend with a sun angle at 20 degrees or below. Miami, FL (25.8 N): Zero days (Lowest sun angle: 40.7 degrees, highest sun angle: 87.7 degrees) Atlanta, GA (33.7 N): Zero days (Lowest sun angle: 32.8 degrees, highest sun angle: 79.8 degrees) Chicago, IL (41.9 N): Zero days (Lowest sun angle: 24.6 degrees, highest sun angle: 71.6 degrees) Winnipeg, MB: (49.9 N): 58 days (November 22 - January 19; Lowest sun angle: 16.6 degrees, highest sun angle: 63.6 degrees) Juneau, AK (58.3 N): 117 days (October 23 - February 17; Lowest sun angle: 8.2 degrees, highest sun angle: 55.2 degrees) Bettles, AK (66.9 N): 162 days (September 30 - March 11; Lowest sun angle: -0.4 degrees, highest sun angle: 46.6 degrees) Resolute, NU (74.7 N): 202 days (September 10 - March 30; Lowest sun angle: -8.2 degrees, highest sun angle: 38.8 degrees) Eureka, NU (80.0 N): 231 days (August 27 - April 15; Lowest sun angle: -13.5 degrees, highest sun angle: 33.5 degrees) Alert, NU (82.5 N): 245 days (August 20 - April 22; Lowest sun angle: -16 degrees, highest sun angle: 31 degrees) Barneo (88.2 N): 287 days (July 30 - May 13; Lowest sun angle: -21.7 degrees, highest sun angle: 25.3 degrees) Kind of pointless, but interesting. Our peak sun angle is about 25°, but with the short days we only spend a few hours at that sun angle, the rest of the day it's low on the horizon. The peak doesn't reflect what's typical for the day. |
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Post by alex992 on Dec 22, 2017 11:36:02 GMT -5
^ Oh, definitely. Especially during winter solstice, when the peak doesn't last very long at all.....peak is more representative for summer solstice.
I just find it interesting how places "peak" at such low angles, seems surreal. I would love to experience a really low sun angle.
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Post by Lommaren on Dec 30, 2017 5:13:49 GMT -5
Microscopically rising, from 7.9° on the solstice to 8.2° now on 30 December. Going to rise at a faster rate soon enough though.
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Post by ilmc90 on Feb 25, 2018 10:33:28 GMT -5
39.9 degrees
Solar noon 12:11PM
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Post by Deleted on Feb 25, 2018 10:38:56 GMT -5
26 degrees.
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Post by Lommaren on Mar 7, 2018 19:09:45 GMT -5
26.5° tomorrow as the peak angle at 12:02, the climate soon passing the point where the peak angle time being after noon.
Physical night (-18°) or lower now only occurs between 19:53 and 4:19. That means, complete pitch black for 8 hours and 26 minutes only, due to our lower swings of sun angle. In comparison, Miami still has full night between 19:44 and 5:19 in spite of longer days, which speaks volumes about the sun angle curve.
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Post by AJ1013 on Mar 7, 2018 21:11:01 GMT -5
^ Oh, definitely. Especially during winter solstice, when the peak doesn't last very long at all.....peak is more representative for summer solstice. I just find it interesting how places "peak" at such low angles, seems surreal. I would love to experience a really low sun angle. The opposite is actually true lol. More time is spent close to the peak sun angle during the winter than the summer. |
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Post by alex992 on Mar 7, 2018 21:15:07 GMT -5
^ Oh, definitely. Especially during winter solstice, when the peak doesn't last very long at all.....peak is more representative for summer solstice. I just find it interesting how places "peak" at such low angles, seems surreal. I would love to experience a really low sun angle. The opposite is actually true lol. More time is spent close to the peak sun angle during the winter than the summer. You're actually right. That's kind of strange. |
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Post by AJ1013 on Mar 7, 2018 21:17:48 GMT -5
The opposite is actually true lol. More time is spent close to the peak sun angle during the winter than the summer. You're actually right. That's kind of strange. It makes sense when you think about how any location travels with the earth around it’s axis during the different seasons. |
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Post by Babu on Mar 9, 2018 11:58:46 GMT -5
Isn't it identical in every season? I thought the sun moves in a specific double extreme point orbit and then the horizon just changes Y-coordinates on the graph.
Sun angle was 75.4° at its peak today in Koh Tao. Zenith on the 16th of April.
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Post by Deleted on Mar 9, 2018 12:05:33 GMT -5
33 degrees.
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Post by ilmc90 on Mar 21, 2018 11:10:44 GMT -5
49.2 degrees with solar noon at 1:05PM
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Post by alex992 on Mar 21, 2018 11:16:46 GMT -5
Peak is 64.31 degrees today at 1:28 PM. Sun is getting really strong...
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Post by Cadeau on Mar 21, 2018 16:59:42 GMT -5
Terre Haute, IN:
Tomorrow (March 22, 2018)
Solar Noon(51.4°): 1:56PM
Above 30°: 10:34AM~5:19PM
Above 20°: 9:39AM~6:14PM
Above 10°: 8:45AM~7:08PM
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Post by alphatier on Mar 22, 2018 13:52:17 GMT -5
The peak angle is 43.1 degrees tomorrow. It was completely sunny yesterday but cold (~ 5C) and windy. Went outside for a walk around noon but especially at these temperatures the sun still feels somewhat weak to me. Not much difference to a sunny 5C day in January in terms of comfort. Though I can definitely appreciate the longer days and higher sun angle.
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Post by nei on May 31, 2018 11:06:51 GMT -5
IMO, people talk about peak sun angle too much; most of the time we're not out at exactly solar noon. And during spring and summer, with the longer days, the sun takes longer to go down if you're at a higher latitude later in the day the difference between a high-latitude and low-latitude sun angle gets smaller. So, I made a plot of sun angle with time. For May 20. Picked 25°N for Miami; 42°N for Amherst; 56°N for Edinburgh; and 64°N for Umeå. Solar noon is at 1 pm for all lines. I used a formula I found off wikipedia, but there are a few details I didn't bother with. Should be accurate enough for a graph.  By 3 pm or 2 hours before/after solar noon, all the 3 lower latitudes (42° southwards) have a similar sun angle, but 25° (Miami) is still higher than the rest. Miami doesn't get a lower sun angle than Amherst until 4:30 pm or 3 and a half hours before/after solar noon. By 5:30 pm or 4.5 hours after solar noon, the high latitude have a higher sun angle than 25° (Miami). The highest latitudes have a very slow change in sun angle 3 hours before and after solar noon, while the lower latitudes have a fast climb and descent of the sun. |
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Post by AJ1013 on Jun 29, 2018 12:45:09 GMT -5
87* today A little before solar noon:  |
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