-
On-line calculator for Moon/Sun Rise/Set, moon phase, sidereal time and Julian day.
-
From the atomic clock at the United States Naval Observatory.
-
NASA's Dr. Marc of The Space Place answers questions about Moon phases and the lunar month. Includes GIF animation of the Moon going through its phases.
-
Information and Perl script to calculate moon phases including phase illumination age distances angular diameter new/full moon calculation
-
NASA Goddard Spaceflight Center (GSFC) Five Millennia Catalog of the phases of the Moon.
-
Describes a slide rule Moon phase calendar accurate over 8000 years into the past or future, and provides other methods of computing astronomical information.
-
Displays the phase of the Moon in a browser window, with times of last and next Full Moon and New Moon.
-
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.
-
Shows the Moon in eight positions around the Earth to shade in the dark area and the unobservable side.
-
Pictures, animations, and brief comments.
-
Article identifying the exact date and time of van Gogh's Moonrise painting, based on Moon phase calculations.
-
Describes how astronomers used phase of Moon calculations and ancient Greek religious festivals to date the original Marathon run.
-
NASA's Star Child site page that describes the phases of the Moon. Ends with a test to identify the eight Moon phases and their order.
-
The Astronomical Society of the Pacific's detailed explanations of the Moon's phases, including positions of the Moon in southern and northern hemispheres during its different phases and the times of day each phase is visible.
-
NASA Moon images with captions showing different phases, suitable for printing and classroom display.
-
Explains why the Ponzo Illusion makes the Moon appear larger when near the horizon.
-
Pick a century, year, month, day, time, and time zone and see the phase of the moon.
-
Xphoon sets the X-Windows root window image to a picture of the Moon in its current phase.
