THE SPRING EQUINOX
OCCURRENCE ON MONDAY SUNRISE AND SUNSET TIMES A rather curious numerical relation is found in the times of sunrise and sunset; in Auokland to-day. The sun will rise at 6.45 a.m. and set at 5.45 p.m.—an interval of exactly 12 hours o£ daylight. Th<i astronomical equinox does not occur,, however, until Monday, when the nun will cross the equinoctial coluro and will then be seen directly overhead at noon by persons situated on the equator.
Theoretically, day and night will each be of 12 hours, from which fact the word equinox, or '"equal night," is derived. The tables of sunrise and sunset do not show equal day and night at the date of the equinox because the world does not use apparent solar time, as shown on a sundial, but mean solar time, based on the mean movement of the sun throughout the year.
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New Zealand Herald, Volume LXXI, Issue 21910, 20 September 1934, Page 10
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147THE SPRING EQUINOX New Zealand Herald, Volume LXXI, Issue 21910, 20 September 1934, Page 10
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