Lect03_Ecliptic

Lect03_Ecliptic - Astronomy Picture of the Day The Ecliptic...

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Astronomy Picture of the Day
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The Ecliptic The Ecliptic - the Sun’s apparent annual path among the constellations. The Ecliptic Plane - the plane of Earth’s orbit around the Sun. The ecliptic and the celestial equator are not the same because the Earth’s rotational axis is tilted with respect to the ecliptic plane.
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The Celestial Sphere The ecliptic is the Sun’s apparent path through the celestial sphere. The Sun moves along the ecliptic a little bit each day (about a degree) as the Earth orbits the Sun. The constellations of the Zodiac lie along the ecliptic.
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Class Action
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The sky varies as Earth orbits the Sun As the Earth orbits the Sun, the Sun appears to move eastward along the ecliptic. At midnight, the stars on our meridian are opposite the Sun in the sky. Class Action - Coordinates and Motion - Ecliptic (Zodiac) Simulator
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ClassAction - Coordinates and Motion - Seasons Simulator Notice the relation of our orbit to the ecliptic. Note how the tilt of Earth’s rotational axis and
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Lect03_Ecliptic - Astronomy Picture of the Day The Ecliptic...

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