Talk:Day length

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This is not too technical. There are already quite a few related entries, such as sunrise, sunset, declination, zenith, azimuth, etc.. Day length is simply the time from sunrise to sunset. --Roland 04:23, 28 April 2006 (UTC)

Do you have any references for this information? Kevin 09:44, 2 May 2006 (UTC)

They are available in any book about solar radiation. --Roland 22:05, 3 May 2006 (UTC)
What I meant was did you have any specific references/citations that you could put into the article, so that a layman could look up the information. Kevin 01:03, 4 May 2006 (UTC)

In the chart, the term "Julian Day" is incorrectly used to mean "day of the year". Numbering the days of the year from 1 to 365 (or 366) is a common way of reckoning dates, but it is NOT the "Julian Day." See the wikipedia entries for "Julian Day" and "ordinal date". - M 2006-07-24


I have a question- where can I learn about how the length of day differs at any given latitude?