Here's a breakdown:
* Earth's Tilt: Our planet is tilted on its axis at approximately 23.5 degrees. This tilt means that different parts of the Earth receive varying amounts of direct sunlight throughout the year.
* Orbit Around the Sun: As Earth orbits the Sun, the hemisphere tilted towards the Sun receives more direct sunlight, resulting in summer. The opposite hemisphere is tilted away and experiences winter.
How it affects altitude:
* Summer Solstice (around June 21st in the Northern Hemisphere): The Northern Hemisphere is tilted most directly towards the Sun, causing the Sun to reach its highest altitude in the sky. This results in longer days and warmer temperatures.
* Winter Solstice (around December 21st in the Northern Hemisphere): The Northern Hemisphere is tilted farthest away from the Sun, resulting in the lowest Sun altitude, shorter days, and colder temperatures.
* Equinoxes (around March 20th and September 22nd): The Earth is tilted neither towards nor away from the Sun, so both hemispheres receive equal amounts of sunlight. The Sun rises due east and sets due west, resulting in approximately equal day and night lengths.
In summary:
The changing altitude of the Sun throughout the year is a direct consequence of the Earth's tilt and its orbit around the Sun. This tilt causes different hemispheres to receive varying amounts of direct sunlight, leading to distinct seasons and corresponding changes in the Sun's altitude.
