In astronomy, axial tilt is the angle between a planet's rotational axis at its north pole and a line perpendicular to the orbital plane of the planet. It is also called axial inclination or obliquity. The axial tilt of Earth is the cause of seasons like summer and winter on Earth.
Axial tilt
Questions and Answers
Q: What is axial tilt in astronomy?
A: Axial tilt is the angle between a planet's rotational axis at its north pole and a line perpendicular to the orbital plane of the planet.
Q: Is axial tilt also known by any other name?
A: Yes, axial tilt is also known as axial inclination or obliquity.
Q: What is the cause of seasons on Earth?
A: The cause of seasons on Earth is the axial tilt of the planet.
Q: Why is axial tilt important in astronomy?
A: Axial tilt is important in astronomy because it helps to explain phenomena such as the changing seasons on planets like Earth.
Q: What is the axial tilt of Earth?
A: The axial tilt of Earth is approximately 23.5 degrees.
Q: What happens to the axial tilt of a planet over time?
A: The axial tilt of a planet can vary over long periods of time due to factors such as gravitational forces from other celestial bodies.
Q: Is axial tilt unique to Earth?
A: No, axial tilt is not unique to Earth – other planets in our solar system also have their own axial tilts.