{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.682","julian_year":2026.682,"time":"2026-09-07T01:15:19.063Z","years_from_j2000":26.682,"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-206-b","name":"TOI-206 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":155.7282548865249,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":73.7382202,"dec_deg":-62.521874,"epoch_ra_deg":73.807813,"epoch_dec_deg":-62.477872,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-206","semi_major_axis_km":1675496.15184,"periapsis_km":null,"mass_kg":1.3377656023852692e+25,"mass_msun":0.00000672782,"constellation":"Dorado","discovered":"2022","featured":false,"url":"https://spacecatalog.org/object/toi-206-b","radius_km":8291.53,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-206","host_v_mag":14.938,"uncertainties":{"radius_km":[318.90500000000003,318.90500000000003],"distance_ly":[0.357141233599834,0.35877201548841775],"host_mass_solar":[0.01,0.01],"host_radius_solar":[0.01,0.01],"host_temperature_k":[157,157],"semi_major_axis_km":[14959.78707,14959.78707],"orbital_period_days":[3e-7,3e-7]},"host_mass_solar":0.35,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.35,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":3383,"orbital_period_days":0.7363104,"transit_midpoint_bjd":2458325.5431,"equilibrium_temperature_k":910},"designations":[{"catalog":"Exoplanet","designation":"TOI-206 b"},{"catalog":"Host star","designation":"TOI-206"}],"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."}