{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.681","julian_year":2026.681,"time":"2026-09-06T19:28:10.866Z","years_from_j2000":26.681,"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-67-b","name":"HAT-P-67 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1212.2775940802549,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":256.6107279,"dec_deg":44.7768849,"epoch_ra_deg":256.811135,"epoch_dec_deg":44.740272,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HAT-P-67","semi_major_axis_km":9731341.489035,"periapsis_km":null,"mass_kg":8.541560698905243e+26,"mass_msun":0.000429567,"constellation":"Hercules","discovered":"2017","featured":false,"url":"https://spacecatalog.org/object/hat-p-67-b","radius_km":152992.87959047,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HAT-P-67","host_v_mag":10.106,"eccentricity":0,"uncertainties":{"mass_kg":[2.8471868996350808e+26,2.8471868996350808e+26],"radius_km":[1787.300011012,1787.300011012],"distance_ly":[11.405688528754517,11.620951738047568],"host_mass_solar":[0.1,0.1],"inclination_deg":[1.3,1.1],"host_radius_solar":[0.03,0.03],"host_temperature_k":[130,140],"semi_major_axis_km":[118182.31785299999,408402.18701099994],"orbital_period_days":[6.8e-7,7e-7]},"host_mass_solar":1.73,"inclination_deg":88.8,"stars_in_system":2,"discovery_method":"Transit","host_radius_solar":2.62,"planets_in_system":1,"discovery_facility":"HATNet","host_temperature_k":6640,"orbital_period_days":4.8101069,"transit_midpoint_bjd":2459010.99174,"equilibrium_temperature_k":1903},"designations":[{"catalog":"Exoplanet","designation":"HAT-P-67 b"},{"catalog":"Host star","designation":"HAT-P-67"}],"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."}