I've made a few more changes to the Distant Worlds Star Mapper. The big ones are:

• Most stars now show single Greek letters instead of the English names for the letters (e.g. α instead of "Alpha", and π instead of "Pi"). This should make the chart labels less cluttered.
• The pop-up details for individual stars show more information, including proper name, catalog designations, spectral tyes, and absolute magnitudes.
• The charts now include the standard constellation boundaries. These only appear for locations reasonably close to the Sun (within about 15 light years), because at large distances the Earthly constellation names and boundaries are pretty meaningless.