A8 kAt 268

where At is the time interval from the moment of extreme declination, A8 is the change in declination over that interval, and k is a constant.24 For the solstitial Sun, at 8 = 24°, k ~ 13 arc secs/day2. For the Moon, at major standstill, with 8 = 29°, P = 27d32, k ~ 46 arc mins/day2, and at minor standstill, with 8 = 19°, k ~ 30 arc mins/day2. The interval between successive transits of the meridian by the Moon is given by the angular rate formula in terms of the mean solar day (Table 2.6):

To distant foresight

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