What fundamental line does the ecliptic plane represent in our sky?

Answer

The apparent path traced by the Sun viewed from Earth over one year.

The ecliptic is the apparent track traced by the Sun as viewed from Earth over the course of a year. It is not a fixed star or constellation but an apparent circle projected onto the celestial sphere.

What fundamental line does the ecliptic plane represent in our sky?

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What is the Ecliptic in Astronomy? Discover Its Celestial Significance

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