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The Sun and the Seasons - The Celestial Sphere Suns Motion...

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The Celestial Sphere Sun’s Motion
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Diurnal Motion Earth’s rotation is causing the day/night cycle.
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The Sun and Its Motions Due to Earth’s revolution around the sun, the sun appears to move through the zodiacal constellations . The Sun’s apparent path on the sky is called the Ecliptic . Equivalent : The Ecliptic is the projection of Earth’s orbit onto the celestial sphere.
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The Sun and Its Motions Due to Earth’s revolution around the sun, the sun appears to move through the zodiacal constellations . The Sun’s apparent path on the sky is called the Ecliptic . Equivalent : The Ecliptic is the projection of Earth’s orbit onto the celestial sphere.
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The Sun and Its Motions Due to Earth’s revolution around the sun, the sun appears to move through the zodiacal constellations . The Sun’s apparent path on the sky is called the Ecliptic . Equivalent : The Ecliptic is the projection of Earth’s orbit onto the celestial sphere.
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Diurnal Motion Days add up to seasons and years. The daily east-west motion also adds. Look at the compass directions as labeled on your equatorial map. Which way is the Sun moving?
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The Sun and Its Motions The Sun’s apparent motion is west to east, causing an apparent, seasonal migration of the constellations from east to west.
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The Sun and Its Motions This causes each star and constellation to rise a few minutes later, each day. However, on a daily basis, the Sun and the stars move, essentially, together across the sky.
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Diurnal Motion Do tutorial I-23 “Seasonal Stars” Prather Book pages 7 – 9.
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Diurnal Motion Do tutorial I-24 through I-28.
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