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Alex Rivera
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I like to keep track of sunrise and sunset times. For the past couple of years I've been doing this with a small program written with a popular library for my favorite programming language. The last two months I've been keeping track of these times more regularly than usual, and I happened to notice that on the day of the equinox the sunrise time jumped eight minutes as compared to the day before! I knew this was impossible and compared with NOAA , finding out that my rise and set times had been off for several days and in fact seemed to be off by about a minute for most of the year. At this point, I'd like to just implement the calculations myself. What algorithms or formulas are available to do this computation?
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