{"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":"2026-09-07T12:51:36.458Z","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-2266-b","name":"TOI-2266 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":168.29799552735048,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":245.2800398,"dec_deg":31.5770413,"epoch_ra_deg":245.541388,"epoch_dec_deg":31.512706,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-2266","semi_major_axis_km":2991957.414,"periapsis_km":null,"mass_kg":1.7856781924696225e+25,"mass_msun":0.00000898043,"constellation":"Corona Borealis","discovered":"2024","featured":false,"url":"https://spacecatalog.org/object/toi-2266-b","radius_km":9822.274000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-2266","host_v_mag":16.54,"uncertainties":{"radius_km":[574.029,574.029],"distance_ly":[0.42106788363231573,0.42302482189861623],"host_mass_solar":[0.02,0.02],"host_radius_solar":[0.01,0.01],"host_temperature_k":[170,170],"semi_major_axis_km":[299195.7414,299195.7414],"orbital_period_days":[0.0000048,0.0000048]},"host_mass_solar":0.23,"inclination_deg":88.51,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.24,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"M5.0+0.5-0.5","host_temperature_k":3200,"orbital_period_days":2.326318,"transit_midpoint_bjd":2459255.6948195,"equilibrium_temperature_k":550},"designations":[{"catalog":"Exoplanet","designation":"TOI-2266 b"},{"catalog":"Host star","designation":"TOI-2266"}],"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."}