Astro Tutorial #1.4: Coordinate Systems of the night sky - ALT/AZ vs RA/DEC - V2.0
12:11
Astro Tutorial #1.5: Focal Length and Aperture V2 - enhanced audio
13:19
Altitude-Azimuth vs RA-Declination
9:23
Astro Tutorial #1.4 (old version): Coordinate Systems of the night sky - ALT/AZ vs RA/DEC
10:05
Astronomy - Ch. 2: Understanding the Night Sky (8 of 23) Understanding Celestial Coordinates
12:59
Astro Tutorial #1.2: A brief orientation in the night sky
5:52
Right Ascension and Declination: The Equatorial Coordinate System
9:03
Astro Tutorial #1.11: Telescope Mounts - ALT/AZ vs EQ
25:17