{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.654","julian_year":2026.654,"time":"2026-08-27T22:31:13.112Z","years_from_j2000":26.654,"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-7015","name":"NGC 7015","class":"spiral_galaxy_sbc","category":"galaxy","object_type":"Spiral galaxy Sbc","mag":12.53,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":214889566.81667864,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":316.40575,"dec_deg":11.414166666666667,"epoch_ra_deg":316.728512,"epoch_dec_deg":11.5211,"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":"Equuleus","discovered":"1878","featured":false,"url":"https://spacecatalog.org/object/ngc-7015","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":13.24,"h_mag":9.99,"j_mag":10.63,"k_mag":9.69,"v_mag":12.53,"redshift":0.016278,"hubble_type":"Sbc","wikidata_id":"Q1149057","redshift_cmb":0.015208306543161187,"discovered_by":"Édouard Stephan","ngc_type_code":"G","uncertainties":{"distance_ly":[16579193.36919556,16579193.36919556]},"major_axis_arcmin":1.7,"minor_axis_arcmin":1.51,"wikipedia_article":"NGC 7015","position_angle_deg":170,"surface_brightness":23.05,"radial_velocity_km_s":4840},"designations":[{"catalog":"2MASX","designation":"2MASX J21053739+1124511"},{"catalog":"IRAS","designation":"IRAS 21032+1112"},{"catalog":"IRAS","designation":"IRAS F21032+1112"},{"catalog":"LEDA","designation":"LEDA 66076"},{"catalog":"MCG","designation":"MCG +02-53-012"},{"catalog":"NGC","designation":"NGC 7015"},{"catalog":"PGC","designation":"PGC 66076"},{"catalog":"UGC","designation":"UGC 11674"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-27T19:16:43.430Z","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."}