{"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":"2026-09-06T17:22:26.121Z","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":"toi-286-b","name":"TOI-286 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":193.18013942698312,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":90.9842762,"dec_deg":-60.6663348,"epoch_ra_deg":91.062309,"epoch_dec_deg":-60.666712,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-286","semi_major_axis_km":7524772.896209999,"periapsis_km":null,"mass_kg":2.705392044109495e+25,"mass_msun":0.0000136058,"constellation":"Pictor","discovered":"2024","featured":false,"url":"https://spacecatalog.org/object/toi-286-b","radius_km":9056.902,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-286","host_v_mag":9.866,"eccentricity":0,"uncertainties":{"mass_kg":[4.658290936877276e+24,4.658290936877276e+24],"radius_km":[637.8100000000001,637.8100000000001],"distance_ly":[0.24298650139897385,0.2439649705321241],"host_mass_solar":[0.049,0.049],"inclination_deg":[0.59,0.59],"host_radius_solar":[0.036,0.036],"host_temperature_k":[12,12],"semi_major_axis_km":[149597.8707,149597.8707],"orbital_period_days":[0.0000027,0.0000031]},"host_mass_solar":0.832,"inclination_deg":87.52,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.78,"planets_in_system":2,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"K3 V","host_temperature_k":5152,"orbital_period_days":4.5117244,"transit_midpoint_bjd":2460186.64911,"equilibrium_temperature_k":979,"argument_of_periastron_deg":90},"designations":[{"catalog":"Exoplanet","designation":"TOI-286 b"},{"catalog":"Host star","designation":"TOI-286"}],"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."}