{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T19:07:17.116Z","years_from_j2000":26.667,"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":"ic-1959","name":"IC 1959","class":"barred_spiral_galaxy_sbm","category":"galaxy","object_type":"Barred spiral galaxy SBm","mag":12.83,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":26973239.276692662,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":53.302458333333334,"dec_deg":-50.414249999999996,"epoch_ra_deg":53.503223,"epoch_dec_deg":-50.323285,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Horologium","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ic-1959","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.19,"h_mag":11.22,"j_mag":11.77,"k_mag":11.04,"v_mag":12.83,"redshift":0.002139,"hubble_type":"SBm","wikidata_id":"Q3692920","redshift_cmb":0.0019281735452194582,"ngc_type_code":"G","uncertainties":{"distance_ly":[14040805.77524849,14040805.77524849]},"major_axis_arcmin":3.05,"minor_axis_arcmin":0.72,"position_angle_deg":148,"surface_brightness":23.08,"radial_velocity_km_s":641},"designations":[{"catalog":"2MASX","designation":"2MASX J03331257-5024511"},{"catalog":"ESO","designation":"ESO 200-039"},{"catalog":"ESO","designation":"ESO 200-39"},{"catalog":"ESO-LV","designation":"ESO-LV 200-0390"},{"catalog":"IC","designation":"IC 1959"},{"catalog":"IRAS","designation":"IRAS 03317-5034"},{"catalog":"LEDA","designation":"LEDA 13163"},{"catalog":"PGC","designation":"PGC 13163"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}