|
XEphem is seriously badass. It can do so many things modern planetarium programs can't. Sure, it is also lacking in a few areas, such as UI and scope control, but its great strength is that virtually any piece of data available to the program can be graphed over time or solved for (minimum or maximum). It's a cinch to plot the ring tilt of Saturn over the next ten years, for example, or to find out when two arbitrary bodies have their closest approach.
|