{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.674","julian_year":2026.674,"time":"2026-09-04T03:39:52.211Z","years_from_j2000":26.674,"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-694","name":"NGC 694","class":"lenticular_galaxy_s0","category":"galaxy","object_type":"Lenticular galaxy S0","mag":13.77,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":125482750.00390045,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":27.743708333333338,"dec_deg":21.997500000000002,"epoch_ra_deg":28.115352,"epoch_dec_deg":22.130663,"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":"Aries","discovered":"1861","featured":false,"url":"https://spacecatalog.org/object/ngc-694","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.33,"h_mag":11.21,"j_mag":11.87,"k_mag":10.93,"v_mag":13.77,"redshift":0.00986,"hubble_type":"S0","wikidata_id":"Q957642","redshift_cmb":0.008922704091933298,"discovered_by":"Heinrich Louis d'Arrest","ngc_type_code":"G","uncertainties":{"distance_ly":[14953436.803862238,14953436.803862238]},"major_axis_arcmin":0.57,"minor_axis_arcmin":0.34,"wikipedia_article":"NGC 694","position_angle_deg":163,"surface_brightness":21.83,"radial_velocity_km_s":2941},"designations":[{"catalog":"2MASX","designation":"2MASX J01505849+2159511"},{"catalog":"IRAS","designation":"IRAS 01481+2144"},{"catalog":"IRAS","designation":"IRAS F01482+2145"},{"catalog":"LEDA","designation":"LEDA 6816"},{"catalog":"MCG","designation":"MCG +04-05-020"},{"catalog":"NGC","designation":"NGC 694"},{"catalog":"PGC","designation":"PGC 6816"},{"catalog":"UGC","designation":"UGC 1310"}],"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."}