{"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":"2026-08-27T17:05:46.549Z","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":"avior","name":"Avior","class":"k3_iii_b2_v_orange_giant","category":"star","object_type":"K3:III+B2:V orange giant","mag":1.86,"mag_band":"V","abs_mag":-4.482,"abs_mag_band":"V","distance_ly":605.1140137013414,"distance_method":"parallax","ra_deg":125.62853999999999,"dec_deg":-59.509483,"epoch_ra_deg":125.76335,"epoch_dec_deg":-59.594636,"epoch_moved_arcsec":0.907,"pm_ra_mas_yr":-25.34,"pm_dec_mas_yr":22.72,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Carina","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/avior","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"08225-5931","companions":[{"measured":2023,"magnitude":3.86,"components":null,"discoverer_code":"HDS1190","separation_arcsec":0.4,"position_angle_deg":151}],"wikidata_id":"Q14256","also_known_as":["Epsilon Car","Epsilon Carinae","ε Car","ε Carinae"],"spectral_type":"K3:III+B2:V","color_index_bv":1.196,"luminosity_solar":5405.053537086696,"wikipedia_article":"Epsilon Carinae","radial_velocity_km_s":2,"spectral_type_source":"SIMBAD (1975MSS...C01....0H, quality C)","proper_motion_ra_mas_yr":-25.34,"proper_motion_dec_mas_yr":22.72},"designations":[{"catalog":"Bayer/Flamsteed","designation":"Epsilon Car"},{"catalog":"Common name","designation":"Avior"},{"catalog":"HD","designation":"HD 71129"},{"catalog":"HIP","designation":"HIP 41037"},{"catalog":"HR","designation":"HR 3307"},{"catalog":"IRAS","designation":"IRAS 08214-5920"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","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."}