Definition:Galactic Equator

Definition

The galactic equator is the great circle that is the intersection of the plane of the Milky Way with the celestial sphere.

Galactic Poles

The galactic poles are the two poles of the great circle that is the galactic equator.

Galactic Axis

The galactic axis is the axis of the great circle that is the galactic equator.

Also known as

The galactic equator is also known as the galactic circle.

Also see

• Definition:Galactic Coordinate System

• Results about the galactic equator can be found here.

Sources

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