Siti locali con utilita' astronomiche

• Sky Draw - Mappa del cielo
• Day and Night - Giorno e notte
• Solar Eclipses and Lunar Umbra - Eclissi di Sole e di Luna
• Astronomical Almanac - Almanacco Astronomico
• Vertical Sundial - Meridiana solare verticale
  

Siti esterni

• NASA's Astronomy Picture of the Day - Each day a different image or photograph of our universe.
• AstroWeb - A collection of pointers to astronomy-related information available on the Internet.
• WebStars - Astronomy in CyberSpace
• Astronomy Now   Contains breaking news, night sky info, resources.
• Space   News and photos from Hubble Telescope.
• Solar System Simulator - NASA's solar system simulator page.
• Yahoo:Science:Astronomy  -Description: Yahoo's search engine configured for Astronomy.