{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.681","julian_year":2026.681,"time":"2026-09-06T15:54:17.618Z","years_from_j2000":26.681,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued J2000 position is carried along the great circle the object's own published motion puts it on, at a constant velocity, and the result is referred to the true equator and equinox of this instant. Those are separate things: the motion moves the object, and the rotation turns the grid under it by about fifty arcseconds a year, with nutation adding up to another seventeen.","excluded":"Parallax, the radial-velocity perspective term, aberration and refraction; each is below the accuracy of the catalogued positions themselves. An object with no published proper motion comes back where the catalogue has it rather than at a fabricated zero, and says so with a null pm_ra_mas_yr. A body with no fixed position is not propagated at all — its place comes from an ephemeris, which is what /api/v1/visible answers with."},"slug":"gliese-gl-810b","name":"Gl 810B","class":"red_star","category":"star","object_type":"Red star","mag":14.55,"mag_band":"V","abs_mag":14.035,"abs_mag_band":"V","distance_ly":41.338037780953215,"distance_method":"parallax","ra_deg":313.90719,"dec_deg":-14.065635,"epoch_ra_deg":314.2894,"epoch_dec_deg":-13.966491,"epoch_moved_arcsec":39.488,"pm_ra_mas_yr":1411.5,"pm_dec_mas_yr":-445.04,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Aquarius","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/gliese-gl-810b","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"color_index_bv":1.72,"luminosity_solar":0.0002118361135248,"radial_velocity_km_s":0,"proper_motion_ra_mas_yr":1411.5,"proper_motion_dec_mas_yr":-445.04},"designations":[{"catalog":"Gliese","designation":"Gl 810B"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","attribution":"Data from SpaceCatalog.org. Individual records carry their source and license in `source`; attribution is required for CC-BY and CC-BY-SA rows."}