It is for a science quiz. No I am not cheating I just need to study but can't find it.
2006-10-31 03:16:41 · 3 answers · asked by Miley Cyrus 1 in Science & Mathematics ➔ Astronomy & Space
Do a web search on "sidereal day". This is the length of time it takes for the earth to rotate once on it's axis and bring the stars overhead back to the same position each day. Since we're moving around the sun at the same time, it makes the stars appear to move. The length of the sidereal day is 23 hours 56 minutes 4.1 seconds which makes the stars appear to set earlier by 3 minutes 55.9 seconds each day.
2006-10-31 03:24:15 · answer #1 · answered by Anonymous · 3⤊ 1⤋
About 4 minutes. Actually 3 minutes and 57 seconds.
360° / 365 days = 0.986301369863 degrees of arc per day.
15 degrees = 1 hour so:
0.9863013699863 / 15 =.0657534246575 hours per day or
3 minutes and 57 seconds.
2006-10-31 03:31:02 · answer #2 · answered by Anonymous · 1⤊ 1⤋
The first answer is right. The second one is close, but not exactly right because a year is not exactly 365 days long; it is about 365 1/4 days long, which is why we need leap years.
2006-10-31 04:09:50 · answer #3 · answered by campbelp2002 7 · 1⤊ 1⤋