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1 Stellarium has numerous stars listed in it's star catalog.
2 The star catalog data is located in the stars/default sub-directory
3 in the installation or ~/.stellarium directory.
4 The star catalog splits the data into different files.
5
6 Each catalog file models stars for one level. Star records do not list the star's full coordinates.
7 The coordinates are relative to the central position of the zone the star falls in.
8 This means it is important to know the zone model to learn about a star's positional data.
9 The following summarizes zone file information.
10
11 These ship with Stellarium:
12 File #Records Notes
13 stars_0_0v0_1.cat 5,013 Hipparcos
14 stars_1_0v0_1.cat 21,999 Hipparcos
15 stars_2_0v0_1.cat 151,516 Hipparcos
16 stars_3_1v0_0.cat 434,064 Tycho
17
18 These[1] can be downloaded from the UI('Configuration'):
19 File #Records Notes
20 stars_4_1v0_0.cat 1,725,497 Tycho
21 stars_5_2v0_0.cat 7,669,0111 NOMAD
22 stars_6_2v0_0.cat 26,615,233 NOMAD
23 stars_7_2v0_0.cat 57,826,266 NOMAD
24 stars_8_2v0_0.cat 116,923,084 NOMAD
25
26
27 [1] The bigger the star catalogue, the more RAM/better OpenGL-capable graphics
28 card is required for optimal experience.
29 Rule of thumb : if you don't get 60+ fps most of the time with it, star
30 catalogue is too big.
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