{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.665","julian_year":2026.665,"time":"2026-08-31T19:01:17.201Z","years_from_j2000":26.665,"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":"m76","name":"Barbell Nebula","class":"planetary_nebula","category":"nebula","object_type":"Planetary nebula","mag":10.1,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":null,"distance_method":null,"ra_deg":25.58204166666667,"dec_deg":51.575472222222224,"epoch_ra_deg":26.005551,"epoch_dec_deg":51.711048,"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":"Perseus","discovered":"1780","featured":false,"url":"https://spacecatalog.org/object/m76","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":12.2,"v_mag":10.1,"redshift":-0.000079,"wikidata_id":"Q14015","also_known_as":["Cork Nebula"],"discovered_by":"Pierre Méchain","ngc_type_code":"PN","major_axis_arcmin":1.12,"wikipedia_article":"Little Dumbbell Nebula","radial_velocity_km_s":-24},"designations":[{"catalog":"2MASX","designation":"2MASX J01421808+5134243"},{"catalog":"Common name","designation":"Barbell Nebula"},{"catalog":"Common name","designation":"Cork Nebula"},{"catalog":"Common name","designation":"Little Dumbbell Nebula"},{"catalog":"HD","designation":"HD 10346"},{"catalog":"IRAS","designation":"IRAS 01391+5119"},{"catalog":"IRAS","designation":"IRAS F01391+5119"},{"catalog":"Messier","designation":"M 76"},{"catalog":"NGC","designation":"NGC 650"},{"catalog":"NGC","designation":"NGC 651"},{"catalog":"PN","designation":"PN G130.9-10.5"}],"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."}