The angle between the plane of the equator and the plane of the ecliptic is known as obliquity of the ecliptic and its value is
- A22° 30'
- B23° 27'Correct
- C23° 30'
- D24° 0'
Solution
Concept
Obliquity of the ecliptic
Step-by-step solution
1. The ecliptic is the apparent annual path of the sun. 2. The angle between its plane and the plane of the equator is 23° 27′.
Explanation
The obliquity of the ecliptic is the inclination of the earth’s axis (about 23.5°) and is responsible for the changing seasons. Its value is 23° 27′.
Shortcut
Obliquity = 23° 27′.
Common mistake
Rounding it to 23° 30′.
Correct answer: B) 23° 27'