{"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":"2026-09-06T17:53:13.715Z","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-260-b","name":"TOI-260 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":65.83531715488009,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":4.7730178,"dec_deg":-9.9661505,"epoch_ra_deg":5.115388,"epoch_dec_deg":-9.816946,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-260","semi_major_axis_km":14107079.207009997,"periapsis_km":null,"mass_kg":2.5262270080757535e+25,"mass_msun":0.0000127048,"constellation":"Cetus","discovered":"2024","featured":false,"url":"https://spacecatalog.org/object/toi-260-b","radius_km":10906.551000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-260","host_v_mag":9.9,"eccentricity":0,"uncertainties":{"mass_kg":[9.555468588466207e+24,9.555468588466207e+24],"radius_km":[510.24800000000005,510.24800000000005],"distance_ly":[0.07534212325256773,0.07566827963028447],"host_mass_solar":[0.032,0.032],"inclination_deg":[0.17,0.17],"host_radius_solar":[0.014,0.014],"host_temperature_k":[14,14],"semi_major_axis_km":[239356.59312,239356.59312],"orbital_period_days":[0.000011,0.000013]},"host_mass_solar":0.616,"inclination_deg":88.84,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.607,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"K8 V","host_temperature_k":4026,"orbital_period_days":13.475853,"transit_midpoint_bjd":2458392.2942,"equilibrium_temperature_k":493,"argument_of_periastron_deg":90},"designations":[{"catalog":"Exoplanet","designation":"TOI-260 b"},{"catalog":"Host star","designation":"TOI-260"}],"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."}