{"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":"2026-09-07T12:51:30.935Z","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-1266-c","name":"TOI-1266 c","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":117.45478243059821,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":197.9965833,"dec_deg":65.8336973,"epoch_ra_deg":198.242371,"epoch_dec_deg":65.690819,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-1266","semi_major_axis_km":15707776.423499998,"periapsis_km":null,"mass_kg":1.893177214089867e+25,"mass_msun":0.00000952106,"constellation":"Draco","discovered":"2020","featured":false,"url":"https://spacecatalog.org/object/toi-1266-c","radius_km":12628.638,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-1266","host_v_mag":12.941,"uncertainties":{"mass_kg":[4.538847579521448e+24,4.538847579521448e+24],"radius_km":[637.8100000000001,637.8100000000001],"distance_ly":[0.0962161314264393,0.0962161314264393],"host_mass_solar":[0.021,0.021],"inclination_deg":[0.04,0.04],"host_radius_solar":[0.0079,0.0077],"host_temperature_k":[77,77],"semi_major_axis_km":[254316.38018999997,254316.38018999997],"orbital_period_days":[0.00116,0.00126]},"host_mass_solar":0.437,"inclination_deg":89.17,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.4232,"planets_in_system":3,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"M2","host_temperature_k":3563,"orbital_period_days":18.8027,"transit_midpoint_bjd":2458689.9588,"eccentricity_upper_limit":0.071,"equilibrium_temperature_k":346,"argument_of_periastron_deg":0},"designations":[{"catalog":"Exoplanet","designation":"TOI-1266 c"}],"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."}