Winter Solstice

In the Valley of the Sun (Arizona), winter solstice 2008 occurred on December 21st at 4:04am (12:04 UTC).

[Wikipedia] "A solstice is an astronomical event that occurs twice a year, when the tilt of the Earth's axis is most oriented toward or away from the Sun, causing the Sun to reach its northernmost or southernmost extreme."

Sunrise was at 7:29am and sunset was at 5:25pm.

Exercises
  1. The difference between 7:29am and 5:25pm is ______ hours and ________ minutes.

  2. 404 has three prime factors: _____ and _____ and 101.

  3. An angle measuring 23.44° is called a _________ angle.

  4. 23.44 degrees = 0.409105177 radians; therefore, one radian = ____________ degrees.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 22 December 2008

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 United States License.