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What is the angle between vernal equinox and to the ascending node called?

What is the angle between vernal equinox and to the ascending node called? Correct Answer Longitude of ascending node

Longitude of ascending node is known as the angle in the fundamental plane between the vernal equinox and the point where satellite crosses through the fundamental plane in northerly direction (ascending node. That is why it is also known as right ascension of ascending node. It is measured counter clockwise when it is viewed from the north side of the fundamental plane.

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