Coordinate converter
Please note that this page requires a browser that supports Javascript in order to do anything useful

This page presents an interactive tool to convert between altitude, azimuth and equatorial coordinates. Follow the three steps below to enter the necessary information and then click on the convert button.
1. Enter the object's coordinates
Enter the coordinates of the object, both in degrees and as decimals:
Altitude: Azimuth:
2. The observer's location
Next, specify the geographic latitude and longitude of your observatory, again using decimals. Northern latitudes are positive, East longitudes are positive:
Latitude: Longitude:
3. The time of observation
Finally specify the date and time of observation, the date should be in the form DD/MM/YYYY. The time should be entered as HH:MM in the 24 hour clock. As you have already entered your longitude, you need to enter Greenwich time:
Date: Time: