{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.685","julian_year":2026.685,"time":"2026-09-08T05:22:57.978Z","years_from_j2000":26.685,"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-5800-b","name":"TOI-5800 b","class":"neptune_like_planet","category":"exoplanet","object_type":"Neptune-like planet","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":139.9380461721242,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":305.0655462,"dec_deg":-7.4119237,"epoch_ra_deg":305.425805,"epoch_dec_deg":-7.327483,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TOI-5800","semi_major_axis_km":5146166.75208,"periapsis_km":null,"mass_kg":5.6735594744018105e+25,"mass_msun":0.0000285331,"constellation":"Aquila","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/toi-5800-b","radius_km":15690.126,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TOI-5800","host_v_mag":9.553001,"eccentricity":0.3,"uncertainties":{"mass_kg":[1.134711894880362e+25,1.0152685375245345e+25],"radius_km":[1020.4960000000001,1148.058],"distance_ly":[0.25896816390709426,0.2602727894179612],"eccentricity":[0.082,0.083],"host_mass_solar":[0.032,0.037],"inclination_deg":[0.56,0.44],"host_radius_solar":[0.023,0.023],"host_temperature_k":[78,78],"semi_major_axis_km":[209437.01898,209437.01898],"orbital_period_days":[0.0000037,0.0000037],"argument_of_periastron_deg":[19,33]},"host_mass_solar":0.778,"inclination_deg":85.08,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.773,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"K3 V","host_temperature_k":4850,"orbital_period_days":2.6278838,"transit_midpoint_bjd":2459771.7145,"equilibrium_temperature_k":1108,"argument_of_periastron_deg":-36},"designations":[{"catalog":"Exoplanet","designation":"TOI-5800 b"},{"catalog":"Host star","designation":"TOI-5800"}],"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."}