{"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":"2026-09-07T20:21:27.200Z","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":"koi-134-b","name":"KOI-134 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":3780.8373461302613,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":295.586598,"dec_deg":45.3649371,"epoch_ra_deg":295.793177,"epoch_dec_deg":45.427705,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"KOI-134","semi_major_axis_km":54304027.0641,"periapsis_km":null,"mass_kg":2.0689558137348256e+27,"mass_msun":0.00104051,"constellation":"Cygnus","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/koi-134-b","radius_km":76782.407776587,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"KOI-134","host_v_mag":13.773,"eccentricity":0.16,"uncertainties":{"mass_kg":[1.5184996798053766e+26,2.2777495197080647e+26],"radius_km":[1215.3639845270002,1215.3639845270002],"distance_ly":[54.5333463542395,54.5333463542395],"eccentricity":[0.03,0.02],"host_mass_solar":[0.043,0.043],"inclination_deg":[0.093,0.13],"host_radius_solar":[0.024,0.024],"host_temperature_k":[130,130],"semi_major_axis_km":[1944772.3190999997,1645576.5776999998],"orbital_period_days":[0.0057,0.0045],"argument_of_periastron_deg":[5,10]},"host_mass_solar":1.407,"inclination_deg":89.58,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.667,"planets_in_system":2,"discovery_facility":"Kepler","host_spectral_type":"F9V","host_temperature_k":6160,"orbital_period_days":67.1277,"transit_midpoint_bjd":2454984.727745,"equilibrium_temperature_k":659,"argument_of_periastron_deg":153.2},"designations":[{"catalog":"Exoplanet","designation":"KOI-134 b"},{"catalog":"Host star","designation":"KOI-134"}],"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."}