I am a gnomonist, not an astronomer. An accuracy of 1 minute for me is sufficient. With differences of hours I have difficulty.
The spring equinox was about at 3-20-2002 18:50 UT Midsummer is about at 6-21-2002 13:10 UT The autumn equinox is about at 9-23-2002 04:40 UT The difference between the time from spring equinox to midsummer on one hand and the time from midsummer to autumn equinox on the other hand is about 21:10 hours. One should suppose there will be no difference in time between the positions of the sun at declination 23.44° to 0° and between the positions at declination 0° and -23.44°. Can anyone give me an explication of this difference? Willy Leenders Flanders in Belgium 50.9 N 5.4 E mailto:[EMAIL PROTECTED] -
