{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T17:01:01.943Z","years_from_j2000":26.684,"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":"hat-p-69-b","name":"HAT-P-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":1113.05103928749,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":130.5056385,"dec_deg":3.7105662,"epoch_ra_deg":130.85726,"epoch_dec_deg":3.614807,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HAT-P-69","semi_major_axis_km":9806140.424384998,"periapsis_km":null,"mass_kg":6.79532012604408e+27,"mass_msun":0.00341746,"constellation":"Hydra","discovered":"2019","featured":false,"url":"https://spacecatalog.org/object/hat-p-69-b","radius_km":119820.79798039999,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HAT-P-69","host_v_mag":9.774,"eccentricity":0,"uncertainties":{"mass_kg":[1.1009177857836778e+27,1.1009177857836778e+27],"radius_km":[2359.2400557,3646.0982679000003],"distance_ly":[16.206710408744982,16.686160283988592],"host_mass_solar":[0.026,0.058],"inclination_deg":[0.72,0.52],"host_radius_solar":[0.031,0.06],"host_temperature_k":[600,360],"semi_major_axis_km":[52359.254745,104718.50949],"orbital_period_days":[0.0000021,0.0000018]},"host_mass_solar":1.648,"inclination_deg":87.19,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.926,"planets_in_system":1,"discovery_facility":"HATNet","host_temperature_k":7394,"orbital_period_days":4.7869491,"transit_midpoint_bjd":2458495.78861,"equilibrium_temperature_k":1930},"designations":[{"catalog":"Exoplanet","designation":"HAT-P-69 b"},{"catalog":"Host star","designation":"HAT-P-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."}