Ecliptic longitude or celestial longitude (symbols: heliocentric l, geocentric λ) measures the angular distance of an object along the ecliptic from the primary direction. ... Because it is a right-handed system, ecliptic longitude is measured positive eastwards in the fundamental plane (the ecliptic) from 0° to 360°.

What is ecliptic longitude and latitude?

It is the angle, measured along the ecliptic meridian of the celestial body, that separates the ecliptic from the body. The latitude ranges between 0° and 90°; the minimum and maximum values are reached on the ecliptic and at the ecliptic pole respectively.

How do you find ecliptic longitude?

The position of the Sun and Moon in the sky as viewed from Earth is depicted. Ecliptic longitude is measured along the Ecliptic in degrees starting from the position of the Sun on the first day of spring in March. This point is called the First Point of Aires.