{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T12:49:27.561Z","years_from_j2000":26.667,"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":"ic-5152","name":"IC 5152","class":"irregular_galaxy_iab","category":"galaxy","object_type":"Irregular galaxy IAB","mag":10.68,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":null,"distance_method":null,"ra_deg":330.6729583333334,"dec_deg":-51.29644444444444,"epoch_ra_deg":331.109995,"epoch_dec_deg":-51.166986,"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":"Indus","discovered":"1899","featured":false,"url":"https://spacecatalog.org/object/ic-5152","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":10.4,"h_mag":9.7,"j_mag":9.82,"k_mag":9.28,"v_mag":10.68,"redshift":0.000407,"hubble_type":"IAB","wikidata_id":"Q2300676","redshift_cmb":-0.00020803481376518995,"discovered_by":"DeLisle Stewart","ngc_type_code":"G","major_axis_arcmin":5.13,"minor_axis_arcmin":3.6,"wikipedia_article":"IC 5152","position_angle_deg":103,"surface_brightness":22.38,"radial_velocity_km_s":122},"designations":[{"catalog":"2MASX","designation":"2MASX J22024152-5117471"},{"catalog":"ESO","designation":"ESO 237-027"},{"catalog":"ESO","designation":"ESO 237-27"},{"catalog":"ESO-LV","designation":"ESO-LV 237-0270"},{"catalog":"IC","designation":"IC 5152"},{"catalog":"IRAS","designation":"IRAS 21594-5132"},{"catalog":"LEDA","designation":"LEDA 67908"},{"catalog":"PGC","designation":"PGC 67908"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}