Links to other sites:
Asteroid Rotation
Astronomy Clubs
Astronomy and Space Magazine
Astronomy Now Magazine
Astronomy Picture of the Day
Aural Moon
Centauri Dreams
Centaurs
Earth and Sky
Galaxy Distances
Globular Clusters
Hipparcos: New (2007) Data
Hipparcos: Old (1997) Data
Hubble Space Telescope
James Kaler
Medieval Calendar
Moon Count
Moon Phases--Past, Present, and Future
Nature
Nearest Stars
NED (NASA Extragalactic Database)
New Scientist
Physics World
Pluto Blog
Pulsar Catalogue
ScienceNOW
Simbad
Solstation.com
Space.com
Star Date
Sunrise and Sunset
Supernovae
Time
Trans-Neptunian Objects
Trojan Asteroids
Universe Today
A Voyage to Arcturus
White Dwarfs