{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.673","julian_year":2026.673,"time":"2026-09-03T20:21:34.379Z","years_from_j2000":26.673,"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":"kepler-349-c","name":"Kepler-349 c","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":3068.2313227120576,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":293.6764689,"dec_deg":44.6155972,"epoch_ra_deg":293.884503,"epoch_dec_deg":44.673781,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-349","semi_major_axis_km":15707776.423499998,"periapsis_km":null,"mass_kg":2.6874755405061204e+25,"mass_msun":0.0000135157,"constellation":"Cygnus","discovered":"2014","featured":false,"url":"https://spacecatalog.org/object/kepler-349-c","radius_km":12501.076000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-349","host_v_mag":14.915,"eccentricity":0,"uncertainties":{"radius_km":[4719.794,4719.794],"distance_ly":[61.28478337297609,61.28478337297609],"host_mass_solar":[0.027,0.015],"host_radius_solar":[0.349,0.349],"host_temperature_k":[200,200],"orbital_period_days":[0.000063,0.000063]},"host_mass_solar":1.083,"inclination_deg":89.77,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.927,"planets_in_system":2,"discovery_facility":"Kepler","host_temperature_k":5956,"orbital_period_days":12.247629,"transit_midpoint_bjd":2454971.21701,"equilibrium_temperature_k":763},"designations":[{"catalog":"Exoplanet","designation":"Kepler-349 c"},{"catalog":"Host star","designation":"Kepler-349"}],"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."}