Convert Right Ascension/Declination <==> Azimuth/Altitude

User Date / / user input
User Time : : user input
Time Zone Offset (HH) east   west of Greenwich
Daylight Savings Time (HH) subtract   add to time zone
Latitude (DD MM SS) °  '  "  north   south
Longitude (DD MM SS) °  '  "  east   west
Local Sideral Time (HH:MM:SS)
Epoch Year (YYYY) user input
Right Ascension (DD MM SS) °  '  " user input
Declination (DD MM SS) °  '  " user input
Altitude (DD MM SS) °  '  " user input
Azimuth (DD MM SS) °  '  " user input
Tirion 2000 page
Uranometeria 2000 page
Millennium page

To obtain azimuth/altitude, fill in the Right Ascension/Declination and click the [Calculate] button. To obtain Right Ascension/Declination, fill in Azimuth/Altitude and click the [Calculate] button.

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This web page was last updated 04/30/08