{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.687","julian_year":2026.687,"time":"2026-09-08T20:07:48.138Z","years_from_j2000":26.687,"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":"hats-69-b","name":"HATS-69 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1352.0388634956566,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":289.2974275,"dec_deg":-60.8917599,"epoch_ra_deg":289.896005,"epoch_dec_deg":-60.843768,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HATS-69","semi_major_axis_km":4803587.628176999,"periapsis_km":null,"mass_kg":1.0952233834434174e+27,"mass_msun":0.000550804,"constellation":"Pavo","discovered":"2018","featured":false,"url":"https://spacecatalog.org/object/hats-69-b","radius_km":67560.0561405,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HATS-69","host_v_mag":14.074,"uncertainties":{"radius_km":[1572.8267038000001,1572.8267038000001],"distance_ly":[11.373072890982844,11.562243590058554],"host_mass_solar":[0.016,0.011],"inclination_deg":[0.55,0.55],"host_radius_solar":[0.0077,0.0077],"host_temperature_k":[16,16],"semi_major_axis_km":[28423.595433,20943.701897999996],"orbital_period_days":[0.0000019,0.0000019]},"host_mass_solar":0.892,"inclination_deg":88.49,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.8785,"planets_in_system":1,"discovery_facility":"HATSouth","host_temperature_k":5137,"orbital_period_days":2.2252577,"transit_midpoint_bjd":2457755.3939,"eccentricity_upper_limit":0.519,"equilibrium_temperature_k":1295.7},"designations":[{"catalog":"Exoplanet","designation":"HATS-69 b"},{"catalog":"Host star","designation":"HATS-69"}],"source":{"id":"exoplanet_archive","name":"NASA Exoplanet Archive (Planetary Systems Composite Parameters)","url":"https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PSCompPars","license":"Public domain (NASA)"},"updated_at":"2026-09-02T19:50:56.720Z","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."}