Kanzelhöhe Observatory


Institute of Physics
Institute for Geophysics, Astrophysics und Meteorology

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Solar Ephemeris Calculation Utility

For calculation of the Solar Ephemeris enter a date in the given format and press the Calculate button! Note: for simple and fast calculations low precision formulae were used - do not expect higher precision than given!

Day	UT	Julian Date	Location of Observer*
			Latitude	° "	Longitude	° "
Sun @ Position	Azimuth	^°	Sunrise		UT
Sun @ Position	Height	^°	Sunset		UT

*default location is Kanzelhöhe Observatory, Austria

Latitude: Give the Latitude of your location in degrees and minutes (North is positive, S is preceeded by a - sign
Longitude: Give the Longitude of your location in degrees and minutes (West is positive, E is preceeded by a - sign
Julian Date: Consecutively numbered days since Jan 01, 4713 B.C. (days start at noon 12 UTC!)
Azim.: Azimuth of the Sun at your location, reckoned from North eastwards.
Height: Height of the Sun above Horizon at your location. Not corrected for refraction!
Sunrise, Sunset: Sunrise and Sunset at your location in Universal Time (UT). Check for your time zone! Sunrise and Sunset are defined as times where the upper limb of the Solar disk appears to be at the horizon, correction for refraction under normal conditions is considered.

KEAS © KSO

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