{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.675","julian_year":2026.675,"time":"2026-09-04T14:30:14.016Z","years_from_j2000":26.675,"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-414-b","name":"Kepler-414 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1348.5261593076473,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":297.9615616,"dec_deg":48.2443363,"epoch_ra_deg":298.156483,"epoch_dec_deg":48.312644,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-414","semi_major_axis_km":8123164.379009999,"periapsis_km":null,"mass_kg":2.090258753726983e+25,"mass_msun":0.0000105122,"constellation":"Cygnus","discovered":"2014","featured":false,"url":"https://spacecatalog.org/object/kepler-414-b","radius_km":10906.551000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-414","host_v_mag":13.378,"eccentricity":0,"uncertainties":{"mass_kg":[1.7319286816595e+25,2.030537075049069e+25],"radius_km":[892.9340000000001,1977.211],"distance_ly":[9.72272161973612,9.859707298377154],"host_temperature_k":[50,50],"semi_major_axis_km":[46375.339917,46375.339917]},"host_mass_solar":0.89,"inclination_deg":89.45,"stars_in_system":1,"discovery_method":"Transit Timing Variations","host_radius_solar":0.946,"planets_in_system":2,"discovery_facility":"Kepler","host_temperature_k":5536,"orbital_period_days":4.7,"transit_midpoint_bjd":2455010.61519,"equilibrium_temperature_k":1024},"designations":[{"catalog":"Exoplanet","designation":"Kepler-414 b"}],"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."}