1. The Sky (Celestial Sphere)
Related to Latitude and Longitude

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

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

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

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

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

7. Diurnal Motion of Sun and Ecliptic
to degrees

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