2007-11-06 06:05:44 · 4 answers · asked by ? 1 in Science & Mathematics ➔ Earth Sciences & Geology
I assume you mean, the angle of the Earth's spin axis to the Earth-Sun line. You need two lines to have an angle.
You can answer this question by this method. Draw a sine wave on paper. Make it so that the Y limits go between + 23.44 degrees and -23.44 degrees. On the X-axis, under the first peak, label it "June 21". Above the first downward peak, label it "Dec 22". Label the first zero crossing with "March 20" and the second with "Sept 23".
Each full cycle of the sine wave is 365 days.
The formula is:
X = today - [3/21/2007] / 365
Angle = 23.44 * sin( X*360 degrees)
This is good enough for plus or minus 1 day (about).
For Nov 6th, the angle is -17.06 degrees, and for Nov 7th, the angle is -17.33 degrees.
2007-11-06 07:32:03 · answer #1 · answered by morningfoxnorth 6 · 0⤊ 0⤋
The Earth tilts a steady 23 1/2 degrees off of perpendicular to the path it takes around the Sun. The Earth's North pole always points toward Polaris, the North star. As the Earth travels around the Sun, the Sun appears to sweep back and forth across our sky annually, although no change in the Earth's tilt has occurred. The Earth's position in it's orbit HAS changed, with an unchanging tilt.
2007-11-06 14:23:39 · answer #2 · answered by Thomas E 7 · 0⤊ 1⤋
On average its 23.5º
2007-11-06 14:08:21 · answer #3 · answered by Silverhorn 6 · 0⤊ 1⤋
http://au.answers.yahoo.com/answers2/frontend.php/question?qid=20071104111050AAlTmQv
2007-11-06 14:13:29 · answer #4 · answered by told_wife_checking_mail 4 · 0⤊ 1⤋