Celestial Coordinates

Locating Pulsars in the Sky

Start with geographical coordinates

Intro to the Celestial Sphere

The Complex motion of the Earth (9:28 minutes)

http://www.youtube.com/watch?v=I3KwOuylqwE

The Meaning of Right Ascension (α) and declination (δ) (Up to 5:00 minutes)

http://www.youtube.com/watch?v=hqPtMqw6CSo

Celestial CoordinatesRight Ascension Declination

You can find more help on this topic here:• http://hyperphysics.phy-astr.gsu.edu/hbase/eclip.html