astronexus/HYG-Database

comp and comp_primary are invalid

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pdyxs commented

Right now 'comp' is 1 for every star, and 'comp_primary' is the current star's id

comp > 1 is currently only defined for multiple stars with a Gliese catalog ID, which is a fairly small subset.

Example: HYG 162 = Gliese 914B; this has comp=2 (since it's the "B" star in the system) and comp_primary = 171 (the HYG ID of Gliese 914A, the primary star in the system).

pdyxs commented

Ah right, that makes a lot more sense. Thanks!