The tools subdirectory contains code for the following Tools in KStars:

AltVsTime: Plots Altitude of a list of objects as a function of time 
           for any date and any location. 

AstroCalculator: Calculator for astronomical functions

JupiterMoons: Plot positions of Jupiter's 4 largest moons vs. time

LCGenerator: Plot light curves for variable stars

PlanetViewer: Plot the positions of planets in their orbits around the Sun

ScriptBuilder: GUI for building complex behavior scripts

WUT: "What's Up Tonight" summary.