Stellarium has numerous stars listed in it's star catalog.
The star catalog data is located in the stars/default sub-directory
in the installation or ~/.stellarium directory.
The star catalog splits the data into different files.

Each catalog file models stars for one level. Star records do not list the star's full coordinates.
The coordinates are relative to the central position of the zone the star falls in.
This means it is important to know the zone model to learn about a star's positional data.
The following summarizes zone file information.

These ship with Stellarium:
File 	                #Records 	Notes
stars_0_0v0_1.cat 	5,013 	        Hipparcos
stars_1_0v0_1.cat 	21,999  	Hipparcos
stars_2_0v0_1.cat 	151,516 	Hipparcos
stars_3_1v0_0.cat 	434,064 	Tycho

These[1] can be downloaded from the UI('Configuration'):
File 	                #Records 	Notes
stars_4_1v0_0.cat 	1,725,497 	Tycho
stars_5_2v0_0.cat 	7,669,0111 	NOMAD
stars_6_2v0_0.cat 	26,615,233 	NOMAD
stars_7_2v0_0.cat 	57,826,266 	NOMAD
stars_8_2v0_0.cat 	116,923,084 	NOMAD


[1] The bigger the star catalogue, the more RAM/better OpenGL-capable graphics
card is required for optimal experience.
Rule of thumb : if you don't get 60+ fps most of the time with it, star
catalogue is too big.