Daytime Sky

• Sunlight and Blue Sky: Jim Kaler's page and pictures; Webexhibits page; Exploratorium activity page.
• Observing the Sun: Sky & Telescope page; Analemma.com site.
• Planet Transits: 1882 Venus transit page; 1999 Mercury transit APOD; NASA 2004 Venus transit page.

Night Sky Observation - Subjects
(see also the Celestial Sphere, Constellations and Stars pages)

• Local Skies and Events: North American Skies site; John Walker's Your Sky site; Stardate Online Stargazing page; Sky Tonight site.
• Images: concam.net's Night Sky Live.
• Angular Size: Rice University page on angles and radians; NASA page on its relationship with actual size; Chandra page on angular size estimates.
• Satellites: NASA's Liftoff homepage.
• Other: Sky & Telescope occulations page; NASA article on moonlight; West Virginia University page on zodiacal light and Gegenschein.

Amateur Astronomy (for other telescopes, see the Telescope links page)

• In General: David Haworth's site.
• Sky & Telescope Tips: In general; the Moon and eclipses; the planets; comets; asteroids; meteors; double stars; variable stars;.deep sky objects (star clucters, nebulae, galaxies).
• Space.com Tips: Buying tips1 and tips2, using a home telescope, and stargazing.
• Publications and Supplies: David Chandler company.
• Clubs and Associations: Battle Point website; Amateur Observers' Society of New York site; Astronomical Society of Long Island site; Astronomical League site; MapMuse map of astronomy clubs and planetariums.
• Meetings and Events: Birr Castle Whirlpool Star Party.
• Science Projects: NASA outreach and education site.

Night Sky Observation - Viewing

• Light Pollution: International Dark-Sky Association website; Outdoor Lighting Associates website; Light from Above site; Sky & Telescope's "Saving dark skies" page; Amateur Observers' Society of NY page.
• Binoculars: R. Dibon-Smith's guide; Birdwatching page on how binoculars work.
• Astrophotography: Matt BenDaniel's site; Dennis Mammana's SkyScapes site; Jerry Lodriguss' Catching the Light site; Pekka Parviainen's Polar Image site; NASA's Astronaut Photography site; Benoit Schillings site; Russell Croman site; Ed Grafton site; Fotosearch.com photos & images; space.com page.
• Astronomy in Mississippi: Rainwater Observatory and Planetarium; Oxford Clear Sky clock.

Books

• G. Cornelius, The Starlore Handbook: An Essential Guide to the Night Sky, Chronicle 1997.
• S. Brunier & A. Fujii, The Great Atlas of the Stars, Firefly Books 2001.
• H.J.P. Arnold, Astrophotography: An Introduction, Sky & Telescope.
• S. Massey et al., Video Astronomy, Sky & Telescope.
• T. Ferris, Seeing in the Dark - How Backyard Stargazers Are Probing Deep Space And Guarding Earth From Interplanetary Peril, 2002.