2007-09-24 04:03:01 · 9 answers · asked by bla b 1 in Science & Mathematics ➔ Astronomy & Space
The seasons are caused by Earth's tilt; in summer, your hemisphere is closer to the sun. IN autumn/spring, they're about equal.
However, changes in the orbit, will cause the whole planet to heat up/cool down. This can cause ice ages.
2007-09-25 00:35:03 · answer #1 · answered by Bob B 7 · 0⤊ 0⤋
Although the seasons are mainly caused by the tilt of the Earths axis, the Earths orbit, around the Sun, is not quite circular and so the distance between the Earth and the Sun changes slightly over the year.
2007-09-24 04:17:01 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Earth's nearly circular orbit (slightly eliptical) makes the length of our seasons about the same. A more eliptical orbit would cause the slowing and speeding up of the earth as it travels around the sun. This would make some seasons longer and others shorter. Thats the connection. Currently this happens but to a very small degree, not very noticable.
2007-09-24 04:30:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The tilt of the axis is responsible only for the variations in daylight hours in both hemisphere.If the axis had been perpendicular to the orbital plane,the day and night would have been equal on the earth's surface.
But the orbital motion of the earth around the sun causes the seasons.
The combimned effect of these two factors(ie the tilt and revolution around the sun) produce the variations in daylight hours as well as seasons.
So, there will be no seasons if the earth does not go round the sun.So, the answer is 'yes'.
2007-09-24 07:08:58 · answer #4 · answered by Arasan 7 · 0⤊ 1⤋
Yes, in that the plane of the earth's orbit and the plane of the earth's equator are not the same. They are inclined about 23½ degrees. Hence as the earth orbits the sun, sometimes the sun is north of the equatorial plane (northern summer), sometimes south (northern winter). Sun crosses the equatorial plane at the equinoxes (March and September, about 21st).
2007-09-24 10:25:50 · answer #5 · answered by James P 5 · 0⤊ 1⤋
No, the seasons are due to the axial tilt of the Earth. Although I suggested that the summer in the southern hemisphere is slightly warmed than the northern because we are about 1% closer to the sun.
2007-09-24 04:16:03 · answer #6 · answered by Mark G 7 · 1⤊ 0⤋
Not really - in summer, we're actually *further* from the sun. What causes seasons is our 23.5 degree tilt.
In summer, though we're farther from the sun, we're tilted *toward* the sun - we get more direct sunlight for about 3 months, and a longer day. In winter, it's just the opposite.
2007-09-24 04:12:43 · answer #7 · answered by quantumclaustrophobe 7 · 0⤊ 0⤋
Yes actually. My postman told me all about it. In his spare time he works at Jodrell Bank in a purely advisory capacity.
2007-09-24 22:50:28 · answer #8 · answered by los 7 · 0⤊ 0⤋
Yes.
2007-09-24 06:27:14 · answer #9 · answered by futuretopgun101 5 · 1⤊ 1⤋