Definition:Ecliptic

Definition

The ecliptic is the great circle that is the intersection of the plane that holds Earth's orbit with the celestial sphere.

Poles of Ecliptic

The poles of the ecliptic are the two poles of the great circle that is the ecliptic.

Ecliptic Axis

The ecliptic axis is the axis of the great circle that is the ecliptic.

Also see

• Obliquity of Ecliptic

• Results about the ecliptic can be found here.

Sources

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