{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T20:55:28.107Z","years_from_j2000":26.67,"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":"ngc-5696","name":"NGC 5696","class":"barred_spiral_galaxy_sbbc","category":"galaxy","object_type":"Barred spiral galaxy SBbc","mag":13.95,"mag_band":"B","abs_mag":null,"abs_mag_band":null,"distance_ly":264621998.3356941,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":219.23783333333333,"dec_deg":41.82811111111111,"epoch_ra_deg":219.498763,"epoch_dec_deg":41.711091,"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":"Boötes","discovered":"1787","featured":false,"url":"https://spacecatalog.org/object/ngc-5696","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.95,"h_mag":10.64,"j_mag":11.2,"k_mag":10.31,"redshift":0.0182,"hubble_type":"SBbc","wikidata_id":"Q1122166","redshift_cmb":0.018679670498596535,"discovered_by":"William Herschel","ngc_type_code":"G","uncertainties":{"distance_ly":[17737199.787808917,17737199.787808917]},"major_axis_arcmin":1.21,"minor_axis_arcmin":0.84,"position_angle_deg":42,"surface_brightness":22.84,"radial_velocity_km_s":5407},"designations":[{"catalog":"2MASX","designation":"2MASX J14365708+4149409"},{"catalog":"IRAS","designation":"IRAS 14350+4202"},{"catalog":"IRAS","designation":"IRAS F14350+4202"},{"catalog":"LEDA","designation":"LEDA 52235"},{"catalog":"MCG","designation":"MCG +07-30-036"},{"catalog":"NGC","designation":"NGC 5696"},{"catalog":"PGC","designation":"PGC 52235"},{"catalog":"SDSS","designation":"SDSS J143657.08+414941.2"},{"catalog":"UGC","designation":"UGC 9415"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","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."}