Virtual Reality Moon Phase -- The United States Naval Observatory (USNO) Moon phase display for the years 1800 through 2199. Visit

Xphoon -- Xphoon sets the X-Windows root window image to a picture of the Moon in its current phase. Visit

The Moon: It is Just a Phase It is Going Through -- The Astronomical Society of the Pacific's detailed explanations of the Moon's phases, including positions of the Moon in southern & northern hemispheres during its different phases & the times of day each phase is visible. Visit

The Space Place Images of Earth's Moon for the Classroom -- NASA Moon images with captions showing different phases, suitable for printing & classroom display. Visit

Moon Phases 5000 Year Catalog -- NASA Goddard Spaceflight Center (GSFC) Five Millennia Catalog of the phases of the Moon. Visit

Moonstick Information Site -- Describes a slide rule Moon phase calendar accurate over 8000 years into the past or future, and gives other methods of computing astronomical information. Visit

Astronomical calendar -- On-line calculator for Moon/Sun Rise/Set, moon phase, sidereal time & Julian day. Visit

The UnMuseum's Ponzo & the Moon -- Explains why the Ponzo Illusion makes the Moon appear larger when near the horizon. Visit

StarChild Moonlight Madness -- NASA's Star Child site page that describes the phases of the Moon. Ends with a test to identify the eight Moon phases & their order. Visit

Phase of Moon GIF -- A 100 by 100 pixel GIF image of the current Moon phase on a black background, from the United States Naval Observatory. Accessible as a URL for embedding in web pages. Visit

How long does each phase of the Moon last? -- NASA's Dr. Marc of The Space Place answers questions about Moon phases & the lunar month. Includes GIF animation of the Moon going through its phases. Visit

Phases of the Moon & Percent of the Moon Illuminated -- Pictures, animations, and brief comments. Visit

Phase of Moon -- Displays the phase of the Moon in a browser window, with times of last & next Full Moon & New Moon. Visit

Sky & Telescope: Dating van Gogh's Moonrise -- Article identifying the exact date & time of van Gogh's Moonrise painting, based on Moon phase calculations. (June 2, 2003) Visit

Moon Phases -- Information & Perl script to calculate moon phases including phase illumination age distances angular diameter new/full moon calculation Visit

Correct Time & Moon Phase -- From the atomic clock at the United States Naval Observatory. Visit

Phases of the Moon Exercise -- Shows the Moon in eight positions around the Earth to shade in the dark area & the unobservable side. Visit