{"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":"2026-09-04T14:47:24.219Z","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":"14-her-b","name":"14 Her b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":58.48734012129958,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":242.6021014,"dec_deg":43.8163621,"epoch_ra_deg":242.819874,"epoch_dec_deg":43.745779,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"14 Her","semi_major_axis_km":424708354.9173,"periapsis_km":null,"mass_kg":1.6893308937834815e+28,"mass_msun":0.00849589,"constellation":"Hercules","discovered":"2002","featured":false,"url":"https://spacecatalog.org/object/14-her-b","radius_km":79726.25,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"14 Her","host_v_mag":6.61935,"eccentricity":0.3683,"uncertainties":{"mass_kg":[3.226811819586425e+27,2.467561979683737e+27],"distance_ly":[0.02380941557332227,0.02380941557332227],"eccentricity":[0.0029,0.0029],"host_mass_solar":[0.04,0.04],"inclination_deg":[9.74,4.584],"host_radius_solar":[0.01,0.01],"host_temperature_k":[25,25],"semi_major_axis_km":[6133512.6987,5834316.9573],"orbital_period_days":[0.68,0.67],"argument_of_periastron_deg":[0.69,0.56]},"host_mass_solar":0.97,"inclination_deg":146.7,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":0.93,"planets_in_system":2,"discovery_facility":"W. M. Keck Observatory","host_spectral_type":"K0","host_temperature_k":5338,"orbital_period_days":1766.41,"periastron_epoch_bjd":2451372.7,"transit_midpoint_bjd":2456834.4,"equilibrium_temperature_k":147.32,"argument_of_periastron_deg":23.2},"designations":[{"catalog":"Exoplanet","designation":"14 Her 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."}