Days start getting longer today ...
Posted 09 December 2003 - 09:58 AM
The actual period of least light is at the winter solstice, on December 21 or 22 (I can never remember which )
But the time of sunset is now getting later, which, if we could perceive the minor differences at the moment, means the effective daylength for most of us is already increasing ... we have longer afternoons which we notice more. Of course, this means that sunrise is also getting later so the time of actual daylight minimum is at the solstice.
Go to http://aa.usno.navy....RS_OneYear.html and put in your city to see what time sunset is. For Huntsville, it's one minute later than yesterday, so we've already bottomed out.
Posted 09 December 2003 - 09:33 PM
Posted 10 December 2003 - 09:02 AM
Kevin ... the tilt of the Earth on it's rotational axis is the reason for our change of seasons rather than the Earth's elliptical path around the sun (which is darn near circular and has little effect other than wider temperature swings in the southern hemisphere).
Posted 10 December 2003 - 09:56 AM
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