December 13 was the day after the winter solstice in 1492, which is just as good for latitude measurements (because: the length of daylight at summer solstice is about the same as the length of night at winter solstice).
(December 13; was; the day; T:after the winter solstice in 1492) (the winter solstice in 1492; is; just as good for latitude measurements; because: the length of daylight at summer solstice is about the same as the length of night at winter solstice) (the length of daylight at summer solstice; is; about the same as the length of night at winter solstice)
December 13 the winter solstice in 1492 the length of daylight at summer solstice
was is is
the day T:after the winter solstice in 1492
just as good for latitude measurements because: the length of daylight at summer solstice is about the same as the length of night at winter solstice
about the same as the length of night at winter solstice