Obliquity of Ecliptic

Physical Law

The plane of the ecliptic is at an inclination of $23 \degrees \, 26 \minutes$ to the plane of the celestial equator.

This inclination is known as the obliquity of the ecliptic.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): ecliptic
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): ecliptic