GaiaStarCatalog

class simsit.catalog.GaiaStarCatalog(gaia_dir, level=7)

Bases: StarCatalog

Star catalog backed by local Gaia trixel FITS files.

Parameters

gaia_dirstr

Directory containing Gaia HTM trixel FITS files named {idx}.fits.

levelint, optional

HTM pixelization level.

Notes

Expected input files should contain columns required for apparent-coordinate conversion, including sky position, proper motion, parallax, and fluxes.