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From:	Great White North (199.85.73.13)
Subject:	Re: Want To Know If You Are Getting Enough UVB Radiation to Make Vitamin D?
Date:	January 30, 2013 at 6:14 am PST

In Reply to: Want To Know If You Are Getting Enough UVB Radiation to Make Vitamin D? posted by kris on January 29, 2013 at 3:13 pm:

I'm not sure how to convert the angle of the sun
into UVB exposure...Here is the reading for Buffalo
(probably close enough to my city in Canada).

What do I do with that info?

Astronomical Applications Dept.
U.S. Naval Observatory
Washington, DC 20392-5420

BUFFALO, NEW YORK
o , o ,
W 78 51, N42 55

Altitude and Azimuth of the Sun
Jan 30, 2013
Eastern Standard Time

Altitude Azimuth
(E of N)

h m o o
06:30 -11.6 103.2
06:40 -9.8 104.9
06:50 -8.1 106.5
07:00 -6.3 108.1
07:10 -4.6 109.8
07:20 -2.9 111.4
07:30 -1.2 113.1
07:40 0.9 114.8
07:50 2.4 116.5
08:00 4.0 118.3
08:10 5.5 120.0
08:20 7.1 121.8
08:30 8.6 123.7
08:40 10.1 125.5
08:50 11.6 127.4
09:00 13.0 129.4
09:10 14.4 131.4
09:20 15.7 133.4
09:30 17.0 135.5
09:40 18.3 137.6
09:50 19.5 139.8
10:00 20.6 142.0
10:10 21.7 144.3
10:20 22.8 146.6
10:30 23.8 148.9
10:40 24.7 151.4
10:50 25.5 153.8
11:00 26.3 156.3
11:10 27.0 158.9
11:20 27.6 161.5
11:30 28.1 164.1
11:40 28.6 166.7
11:50 29.0 169.4
12:00 29.3 172.1
12:10 29.5 174.9
12:20 29.6 177.6
12:30 29.6 180.3
12:40 29.6 183.1
12:50 29.5 185.8
13:00 29.2 188.5
13:10 28.9 191.2
13:20 28.5 193.9
13:30 28.0 196.6
13:40 27.5 199.2
13:50 26.8 201.8
14:00 26.1 204.3
14:10 25.3 206.8
14:20 24.5 209.3
14:30 23.6 211.7
14:40 22.6 214.0
14:50 21.5 216.3
15:00 20.4 218.6
15:10 19.2 220.8
15:20 18.0 223.0
15:30 16.8 225.1
15:40 15.4 227.2
15:50 14.1 229.2
16:00 12.7 231.2
16:10 11.3 233.1
16:20 9.8 235.0
16:30 8.3 236.9
16:40 6.8 238.7
16:50 5.2 240.5
17:00 3.7 242.3
17:10 2.1 244.0
17:20 0.6 245.7
17:30 -1.5 247.4
17:40 -3.2 249.1
17:50 -4.9 250.7
18:00 -6.7 252.4
18:10 -8.4 254.0
18:20 -10.2 255.7
18:30 -12.0 257.3

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