{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.679","julian_year":2026.679,"time":"2026-09-06T00:03:41.532Z","years_from_j2000":26.679,"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":"hd-10697-b","name":"HD 10697 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":108.02462308167401,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":26.2324076,"dec_deg":20.0826974,"epoch_ra_deg":26.600248,"epoch_dec_deg":20.217648,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 10697","semi_major_axis_km":306825232.8057,"periapsis_km":null,"mass_kg":1.0900929576396874e+28,"mass_msun":0.00548223,"constellation":"Pisces","discovered":"1999","featured":false,"url":"https://spacecatalog.org/object/hd-10697-b","radius_km":81639.68000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 10697","host_v_mag":6.28262,"eccentricity":0.104,"uncertainties":{"mass_kg":[5.4855800931177576e+26,1.919003970371961e+27],"distance_ly":[0.1441611189508006,0.1441611189508006],"eccentricity":[0.008,0.009],"host_mass_solar":[0.12,0.12],"inclination_deg":[20.53,19.957],"host_radius_solar":[0.044765,0.044765],"host_temperature_k":[28,28],"semi_major_axis_km":[13015014.750899998,11818231.7853],"orbital_period_days":[0.74513,0.82091],"argument_of_periastron_deg":[5.448,5.254]},"host_mass_solar":0.99,"inclination_deg":86.116,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.863076,"planets_in_system":1,"discovery_facility":"W. M. Keck Observatory","host_spectral_type":"G3 V","host_temperature_k":5641,"orbital_period_days":1075.3799,"periastron_epoch_bjd":2449333.898,"transit_midpoint_bjd":2452506.8,"equilibrium_temperature_k":259.25,"argument_of_periastron_deg":112.816},"designations":[{"catalog":"Exoplanet","designation":"HD 10697 b"},{"catalog":"Host star","designation":"HD 10697"}],"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."}