Quote:
Originally Posted by Alpheratz
You cannot rely on UT and draw conclusions on this basis (including regarding the correctness of declination) if you read UT when measuring the Sun, because there are 2 precisely established facts:
1. The declination of the Sun SH5 does not correspond to the actual declination of the Sun (you can check on your mod with the checkpoints on March 20, June 22, September 23, December 22).
2. The time correction is performed on the basis of the actual declination of the Sun (see file Sun.txt), and therefore gives a deliberately incorrect result.
The only exceptions are measurements taken around March 20 and September 23.
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Aha I see, ok thanks. I was operating on the assumption that the time correction worked to offset even any declination errors such that using “real” almanac would yield correct results in any case where the corrected UT is displayed. In other words, I had assumed that the mod was trying to force real-world results through the time correction.
That said, my fixes are indeed not totally exact (allowing for possible measurement error), so I can understand what you are saying about the declination being fundamentally different than reality, which is unfortunate. But at least for the moment not wildly off, and still workable.