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Old 03-15-2015, 06:09 PM
 
4,658 posts, read 3,656,111 times
Reputation: 1345

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Yes. Shadow length is proportional to cotan. (tan complement)

 
Old 03-18-2015, 04:05 AM
 
4,658 posts, read 3,656,111 times
Reputation: 1345
06:19 am
06:25 pm

solar noon : 12:22 pm
max sun angle : 88.4°

Still too late sunsets for me, especially combined with the above average heat and humidity/dewpoint and (mostly) sunny evenings in the recent days.
 
Old 03-18-2015, 04:25 AM
 
Location: Yorkshire, England
5,586 posts, read 10,651,608 times
Reputation: 3111
18 March

Sunrise: 06:16
Sunset: 18:17

Finally made it back above 12 hours. This time next week we'll have sunrises before 6 am, though only for a few days before everything gets put an hour later.
 
Old 03-18-2015, 04:29 AM
 
Location: Bologna, Italy
7,501 posts, read 6,289,161 times
Reputation: 3761
6:22 am
6:22 pm

12 hours today !
 
Old 03-18-2015, 04:46 AM
 
4,658 posts, read 3,656,111 times
Reputation: 1345
european clock forward = birthday of an european frequent poster here
 
Old 03-19-2015, 09:27 AM
 
4,658 posts, read 3,656,111 times
Reputation: 1345
Equinox is on the way. Will be at 05:45 am Mar 21 for here.

For tomorrow 20 Mar

Rumbai, Pekanbaru

Sunrise : 06:18 am
Sunset : 06:24 pm

Solar noon : 12:21 pm

Highest sun angle at solar noon : 89.1°!!!

Right now (as of 03:27 pm UTC Mar 19) the right ascension of the sun is around -1.28°!!! And the declination of the sun is around -0.5°!!! When both figures are 0 thats the March equinox.
 
Old 03-19-2015, 10:05 AM
nei nei won $500 in our forum's Most Engaging Poster Contest - Thirteenth Edition (Jan-Feb 2015). 

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Location: Western Massachusetts
45,983 posts, read 53,467,780 times
Reputation: 15184
Hmm could you take a photo of no shadow and post it?
 
Old 03-19-2015, 10:49 AM
 
3,573 posts, read 3,803,538 times
Reputation: 1644
sunrise: 06:18
sunset: 18:23
daylength: 12h 4m 54s
+5m 00s
 
Old 03-19-2015, 06:55 PM
 
Location: Trondheim, Norway - 63 N
3,600 posts, read 2,691,940 times
Reputation: 1872
Sunrise: 06:21
Sunset: 18:33

12 h 12 min
+6:19
 
Old 03-19-2015, 07:11 PM
 
Location: Western SC
824 posts, read 688,603 times
Reputation: 226
Sunrise: 7:35 (The US is in DST)
Sunset: 7:40
Daylength: 12 h 5 min 16 sec
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