Technically, the earth's axis is always tilted. There are wobbles in the earth's spin that follow extremely long cycles and that wouldn't be part of our practical experience of earth's movement. However, you are pointing to something interesting. While the tilt is still really there, there are two momentsin the year, the equinoxes, when the center of the sun is exactly in the earth's equatorial plane. At these moments, conditions are much as they would be if there were no tilt in our axis. The vernal equinox (March in the north and September in the south) is the beginning of spring, and the autumnal equinox (September in the north and March in the south) marks the beginning of autumn.
the earth would be weird.
Seasons And Climate
earth's orbit around the sun The earth's axis is tilted by 23.45 degrees and this means that different parts of the globe receive varying amounts of sunlight during the year, creating the seasons
the way earth has a tilted axis
the way earth has a tilted axis
The seasons are caused by the fact that the Earth's axis is tilted. As the Earth travels around the sun, the hemisphere that is tilted toward the sun changes. Whenever your hemisphere is pointed toward the sun, it is summer in your hemisphere.
the Earth rotates on an axis, that axis is tilted with respect to the axis of Earth's orbit, and Earth's orbit is slightly elliptical.
On the contrary, we have seasons precisely because the Earth's axis is tilted.
if the earth wasn't on tilted on it's axis there wouldn't be any seasons
In a way, the Earth's axis IS tilted on its side, that's why we have seasons.
23.5°
No
Earth
no seasons
earth
There would be no four seasons if the earths axis was not tilted.
It is a result of the way the earth is tilted on its axis