Comment 1 for bug 827443

Excellent question! The “ephem” and “XEphem” tools were once so popular in my circles that links to the documentation hardly seemed necessary, because everyone probably used those tools before finding PyEphem. But no longer! I have created three (3) separate hyperlinks to the XEphem's documentation of its file format:

From the words "XEphem format" in the Quick Reference;
From the words “ephem database format” in the Tutorial;
From a new entry on the “Catalogs” page.

Oh, yes, and I also corrected the link to the catalogs page that you found in the tutorial that used a "#" when it should have used a "/" so that the Catalogs page can be reached right from the tutorial. (It can also be reached from the main table of contents, in case you ever need to find it from there.) Thanks, and let me know about any other ways that the documentation can be improved!