{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.676","julian_year":2026.676,"time":"2026-09-04T19:07:42.754Z","years_from_j2000":26.676,"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-5963","name":"NGC 5963","class":"intermediate_spiral_galaxy_sabb","category":"galaxy","object_type":"Intermediate spiral galaxy SABb","mag":12.12,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":32808113.689764887,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":233.36608333333336,"dec_deg":56.55969444444444,"epoch_ra_deg":233.530692,"epoch_dec_deg":56.468811,"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":"Draco","discovered":"1788","featured":false,"url":"https://spacecatalog.org/object/ngc-5963","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.03,"h_mag":10.14,"j_mag":10.74,"k_mag":9.92,"v_mag":12.12,"redshift":0.002188,"hubble_type":"SABb","wikidata_id":"Q1124473","redshift_cmb":0.002344534649398655,"discovered_by":"William Herschel","ngc_type_code":"G","uncertainties":{"distance_ly":[14065367.734132934,14065367.734132934]},"major_axis_arcmin":3.14,"minor_axis_arcmin":2.47,"wikipedia_article":"NGC 5963","position_angle_deg":58,"surface_brightness":24.07,"radial_velocity_km_s":655},"designations":[{"catalog":"2MASX","designation":"2MASX J15332779+5633345"},{"catalog":"IRAS","designation":"IRAS 15322+5643"},{"catalog":"IRAS","designation":"IRAS F15322+5643"},{"catalog":"LEDA","designation":"LEDA 55419"},{"catalog":"MCG","designation":"MCG +09-25-058"},{"catalog":"NGC","designation":"NGC 5963"},{"catalog":"PGC","designation":"PGC 55419"},{"catalog":"SDSS","designation":"SDSS J153327.85+563334.9"},{"catalog":"SDSS","designation":"SDSS J153327.86+563334.9"},{"catalog":"TYC","designation":"TYC 3872-210-1"},{"catalog":"UGC","designation":"UGC 9906"}],"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."}