{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.686","julian_year":2026.686,"time":"2026-09-08T14:18:23.541Z","years_from_j2000":26.686,"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-4214","name":"NGC 4214","class":"irregular_galaxy_i","category":"galaxy","object_type":"Irregular galaxy I","mag":9.77,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":null,"distance_method":null,"ra_deg":183.91320833333333,"dec_deg":36.326888888888895,"epoch_ra_deg":184.25139,"epoch_dec_deg":36.177506,"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":"Canes Venatici","discovered":"1785","featured":false,"url":"https://spacecatalog.org/object/ngc-4214","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":10.21,"h_mag":8.06,"j_mag":8.71,"k_mag":7.91,"v_mag":9.77,"redshift":0.000977,"hubble_type":"I","wikidata_id":"Q842507","redshift_cmb":0.0018379558447358946,"discovered_by":"William Herschel","ngc_type_code":"G","major_axis_arcmin":6.79,"minor_axis_arcmin":5.28,"wikipedia_article":"NGC 4214","position_angle_deg":128,"surface_brightness":22.88,"radial_velocity_km_s":293},"designations":[{"catalog":"2MASX","designation":"2MASX J12153917+3619368"},{"catalog":"IRAS","designation":"IRAS 12131+3636"},{"catalog":"IRAS","designation":"IRAS F12131+3636"},{"catalog":"LEDA","designation":"LEDA 39225"},{"catalog":"MCG","designation":"MCG +06-27-042"},{"catalog":"NGC","designation":"NGC 4214"},{"catalog":"NGC","designation":"NGC 4228"},{"catalog":"PGC","designation":"PGC 39225"},{"catalog":"UGC","designation":"UGC 7278"}],"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."}