* Earth's Tilt: The Earth is tilted on its axis at approximately 23.5 degrees. This tilt is the primary reason for the changing seasons.
* Earth's Orbit: The Earth orbits the Sun in an elliptical path, meaning it's not perfectly circular.
* Solar Declination: Because of the tilt, the angle at which the Sun's rays hit the Earth changes throughout the year. This angle, known as solar declination, directly affects the path the Sun appears to take across the sky.
Here's how it works:
* Summer Solstice: During the summer solstice, the Sun's rays hit the Northern Hemisphere at the most direct angle, causing the Sun to appear higher in the sky and stay there for longer. This results in longer days and warmer temperatures.
* Winter Solstice: In the winter solstice, the Northern Hemisphere receives less direct sunlight, causing the Sun to appear lower in the sky and stay there for shorter periods. This results in shorter days and colder temperatures.
* Equinoxes: The equinoxes occur twice a year when the Sun's rays hit the Earth directly at the equator. During these periods, day and night are roughly equal in length.
In summary: The Sun's path in the sky is influenced by the Earth's tilt and its orbit around the Sun, resulting in different paths for different seasons.
