Some potentially useful documents:
An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time
Moon Phases
Astronomical Twilight
(generated using USNO data services)
Civil Twilight
(generated using USNO data services)
Nautical Twilight
(generated using USNO data services)
Sun rise/set table
(generated using USNO data services)
Moon rise/set table
(generated using USNO data services)
Table of Constants
Table of commonly used astronomical and physical constants, Greek alphabet, and SI prefixes.