These original Kirt's Cogitations™
may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt
– noun: Concerted thought or reflection; meditation; contemplation.
Kirt [kert] – proper noun: RF Cafe webmaster.
Since you're along for
the ride anyway, here are a few tidbits about your vehicle on these
first days of summer. Earth's axis is currently tilted at an angle of
23.44° relative to its orbital plane, and represents the maximum northward
or southward track where the sun can be directly overhead (zenith) at
noon. The Tropic of Cancer and Tropic of Capricorn are located at 23.44°
of latitude accordingly. The northern summer solstice (from Latin terms
meaning "the sun standing still") occurs when the sun reaches the Tropic
of Cancer, and the winter solstice occurs at the Tropic of Capricorn.
Due to minor gravitational tugs by neighboring planets, the tilt angle
varies between 22.0° and 24.5°, and is currently decreasing by 0.47
second of arc per year. The entire precession period occurs in about