A csillagászati objektumkeresőben használt katalógusok, licenceik és importált verzióik.
Solar System positions, illumination, and constellations are calculated locally in the visitor browser with Astronomy Engine by Don Cross.
Site- and night-specific comet discovery is provided by the Comet Observation Database (COBS).
Geocentric comet right ascension, declination, and magnitude ephemerides are provided by NASA/JPL Horizons.
Sky visualization data derived from d3-celestial by Olaf Frohn. Star positions and magnitudes are based on XHIP; constellation lines and labels use IAU constellations; the Milky Way layer uses the Milky Way Outline Catalog.
OpenNGC by Mattia Verga and contributors.
Deep-sky object names from Stellarium and the sources credited in its names.dat catalog.