{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.683","julian_year":2026.683,"time":"2026-09-07T07:26:09.448Z","years_from_j2000":26.683,"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":"toi-2152-a-b","name":"TOI-2152 A b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":988.2733938643954,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":26.3389717,"dec_deg":77.7901231,"epoch_ra_deg":26.985622,"epoch_dec_deg":77.924826,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-2152","semi_major_axis_km":7575636.172247999,"periapsis_km":null,"mass_kg":5.371692617311519e+27,"mass_msun":0.0027015,"constellation":"Cepheus","discovered":"2023","featured":false,"url":"https://spacecatalog.org/object/toi-2152-a-b","radius_km":91581.251768268,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-2152","host_v_mag":11.436,"eccentricity":0.057,"uncertainties":{"mass_kg":[7.023061019099866e+26,7.212873479075538e+26],"radius_km":[3288.6319768910002,3574.5999582430004],"distance_ly":[9.944507956583507,10.14346334699072],"eccentricity":[0.04,0.068],"host_mass_solar":[0.1,0.085],"inclination_deg":[0.85,1.4],"host_radius_solar":[0.051,0.056],"host_temperature_k":[290,300],"semi_major_axis_km":[164557.65777,139126.01975099999],"orbital_period_days":[0.0000061,0.000006],"argument_of_periastron_deg":[89,83]},"host_mass_solar":1.516,"inclination_deg":86.42,"stars_in_system":3,"discovery_method":"Transit","host_radius_solar":1.612,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"F4 V","host_temperature_k":6630,"orbital_period_days":3.3773512,"transit_midpoint_bjd":2458927.6498,"equilibrium_temperature_k":1802,"argument_of_periastron_deg":96},"designations":[{"catalog":"Exoplanet","designation":"TOI-2152 A b"},{"catalog":"Host star","designation":"TOI-2152"}],"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."}