TheSky (astronomy software)
（重定向自TheSky）
TheSky is an astronomy application designed to be used for educational, observational purposes. TheSky provides an extensive feature set including the following:
The_Sky (first named using an underscore character to separate 'The' from 'Sky' following Pascal naming conventions) was first released in 1983 for DOS and has been upgraded multiple times to support new versions of Microsoft Windows. The latest release of TheSky, called TheSkyX, is also compatible with Mac OS X.