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it is about astrosun

2006-09-17 20:59:27 · 3 answers · asked by ramesh k 1 in Science & Mathematics Earth Sciences & Geology

3 answers

it rises till noon, then it descends

2006-09-17 21:09:00 · answer #1 · answered by -^-Smooth C-^- 4 · 0 0

The answer depends on where you are on earth and the time of year. In some cases it could be before noon, at noon or in the early afternoon.

For places at latitudes above 23 degrees, the greatest height the sun reaches is less than 90 degrees and is reached at noon on midsummer's day, which is around 21 June in the northern hemisphere and around 21 December in the southern hemisphere.

Generally you can calculate the sun's position like this: At a place at latitude X degrees (north or south), the Sun gets at most 113 minus X degrees, or 90 degrees above the horizon, whichever number is smaller.

At the poles, the Sun cannot get any higher than 23 degrees above the horizon. The Sun attains this greatest height at noon on midsummer's day, which at the South Pole happens around 21 December, and at the North Pole around 21 June.

For places at latitudes below 23 degrees, the greatest height is 90 degrees and reached twice a year, about equally long before and after midsummer's day, and further from midsummer's day for places closer to the equator. At the equator, the greatest height is reached at the equinoxes (21 March and 23 September).

2006-09-18 09:11:31 · answer #2 · answered by D M 2 · 0 0

I think it continues to rise until mid-day whichever part of the world you are in, then starts to go over the other side and begins to set. I mean true mid-day....regardless of daylight-saving hours like British Summer Time.

2006-09-18 04:10:54 · answer #3 · answered by lou b 6 · 0 0

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