Interactive Java time and the sky code.
At present, this only contains an executable .jar file that should run on most systems. On a 'nix system:
java -jar JSkyCalc.jar
The source is not included; message me if you would like it. Also, the help text does not work correctly, but it should not be needed by most users.
I'm posting this in a bit of a hurry because apparently the Dartmouth link to this code broke. This should be more widely accessible.