From Minserv (Mineral Services):
Altair is an astronomy calculator for Windows. Altair calculates Local Sidereal Time, Julian Date, Universal Time, RA/DEC to Alt/Az and Alt/Az to RA/DEC.
Built in object database.
Built in location database.
Converts RA/DEC to Alt/Az and Alt/Az to RA/DEC.
Calculates Julian Date.
Calculates Local Sidereal Time.
Calculates Universal Time.
Write to Text File.
Enter any date between 1900 and 2100.