Which component of ecliptic coordinates measures an object's position perpendicular to the ecliptic plane?

Answer

Ecliptic Latitude ($eta$ or $b$)

Ecliptic Latitude measures the object’s position perpendicular to the ecliptic plane, extending $\pm 90^ ext{ extdegree}$ toward the poles.

Which component of ecliptic coordinates measures an object's position perpendicular to the ecliptic plane?

#Videos

The Ecliptic: Crash Course Kids #37.2 - YouTube

Definitionastronomycelestialpathecliptic