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back to my Astronomy JavaScript page

JavaScript computing the Julian Day,
the Declination of the Sun, the Equation of Time, and the Length of Day

Date:              Local Time:         

Latitude (>0 for N, <0 for S): deg    

On

UT is:

Julian Day is:

the Declination of the Sun is:

deg

the Equation of Time is:

min

the Length of Day is:

hours

The algorithms for declination and equation of time are taken from Meeus

JavaScript computing sunrise and sunset


© 2001-2007 J. Giesen

Last Modified: 2007, Jan 18