{"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":"2026-08-27T17:06:00.270Z","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":"ic-1266","name":"IC 1266","class":"planetary_nebula","category":"nebula","object_type":"Planetary nebula","mag":11.2,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":null,"distance_method":null,"ra_deg":266.39708333333334,"dec_deg":-46.08986111111111,"epoch_ra_deg":266.89589,"epoch_dec_deg":-46.10091,"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":"Ara","discovered":"1950","featured":false,"url":"https://spacecatalog.org/object/ic-1266","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":11.59,"h_mag":10.11,"j_mag":10.41,"k_mag":9.19,"v_mag":11.2,"redshift":-0.000314,"wikidata_id":"Q1583273","discovered_by":"A. David Thackeray","ngc_type_code":"PN","major_axis_arcmin":0.16,"wikipedia_article":"IC 1266","radial_velocity_km_s":-94},"designations":[{"catalog":"2MASX","designation":"2MASX J17453533-4605233"},{"catalog":"ESO","designation":"ESO 279-007"},{"catalog":"ESO","designation":"ESO 279-7"},{"catalog":"HD","designation":"HD 161044"},{"catalog":"IC","designation":"IC 1266"},{"catalog":"IRAS","designation":"IRAS 17418-4604"},{"catalog":"PGC","designation":"PGC 255"},{"catalog":"PK","designation":"PK 345-08 1"},{"catalog":"PN","designation":"PN G345.2-08.8"},{"catalog":"TYC","designation":"TYC 8343-1781-1"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-27T16:03:54.983Z","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."}