Background

SkyServer’s About Astronomy and About SDSS pages contain background material to help students and teachers understand the concepts in this project. In addition to SkyServer pages, the references below give more information about the topics covered in this project, and give information and perspectives that may be of interest.

Longitude & Latitude

• David Stern: Stargaze: Longitude & Latitude [Online Textbook]
• Nebraska Astronomy Applet: Terrestrial Coordinates [Animation]

Celestial Coordinates (RA/Dec)

• Sky & Telescope: Understanding Celestial Coordinates [Web Text]
• David Stern: Stargaze: The Celestial Sphere [Online Textbook]
• Nebraska Astronomy Applet Project: Celestial Coordinates [Animation]

The Ecliptic

• David Stern: Stargaze: The Ecliptic

Asteroids

• Nick Strobel: Astronomy Notes: Asteroids [Web Text]

The Seasons

• Nebraska Astronomy Applet Project: Season and Ecliptic Simulator [Animation]
• David Stern: Stargaze: Seasons [Online Textbook]