The Sky (Celestial Sphere)

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Presentation transcript:

The Sky (Celestial Sphere) Related to Latitude and Longitude

Celestial Equator and Poles Observer at North Pole, diurnal circles parallel to the celestial equator

Observer at the Equator Diurnal circles perpendicular to the celestial equator (poles at the horizon)

The Ecliptic Projection of the Earth’s orbital plane – Shown ~ July 4th

Projection on Sky of Earth’s Orbital Plane Ecliptic – 23.5 degrees from Equator

Ecliptic is a Projection of the Earth’s Orbital Plane RACE car analogy

Diurnal Motion of Sun and Ecliptic - 23.5 to + 23.5 degrees

Celestial Coordinates Right Ascension, Declination and Hour Angle Related to position on the Earth

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