You are at : bodmas > Moon Numbers
| Type in the UT date and time | ||
| Enter UT date in yyyymmdd.hhmm format -: | ||
| Results: Physical Ephemeris of Moon | ||
| Libration in Latitude (B) -: | ||
| Libration in Longitude (L) -: | ||
| Colongitude of the Sun (Co) -: | ||
| Subsolar point Lat (Bo) -: | ||
| Subsolar point Long (Lo) -: | ||
| Selenographic Longitude of terminator -: | ||
| Illuminated fraction of Moon's disc -: | ||
| Position angle of bright limb -: | ||
| Position angle of polar axis -: | ||
| Results: Time | ||
| Days since J2000.0 -: | ||
| Julian Day Number -: | ||
| Results: Sun's position | ||
| Distance (AU) -: | ||
| Right Ascension -: | ||
| Declination -: | ||
| Results: Moon's position | ||
| Distance (Earth radii) -: | ||
| Right Ascension -: | ||
| Declination -: | ||
Save this page to your hard drive for use off-line - it will still work. Explore the program by loading the page into a text editor. My excursion into Javascript was prompted by an article called 'Scripting: A programming alternative' byDavid Benn in the March 2000 issue of Sky and Telescope. Arkkana Peck has written a nicely presented Javascript moon ephemeris that tells you the Rukl chart numbers currently on the terminator in the form of a table representing the face of the Moon.
Results : Selenographic longitudes towards Mare Crisium are taken as positive. All figures here are based on geocentric coordinates, and position angles relate to the North Celestial Pole.
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Hacked together by: Keith Burnett [ please report any problems with the script ]
Last modified: 22 February 2000