{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.676","julian_year":2026.676,"time":"2026-09-04T17:26:03.976Z","years_from_j2000":26.676,"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-17092-b","name":"HD 17092 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":745.0129211081396,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":41.5924261,"dec_deg":49.6530375,"epoch_ra_deg":42.052127,"epoch_dec_deg":49.765986,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 17092","semi_major_axis_km":195973210.61699998,"periapsis_km":null,"mass_kg":1.922809856894596e+28,"mass_msun":0.00967009,"constellation":"Perseus","discovered":"2007","featured":false,"url":"https://spacecatalog.org/object/hd-17092-b","radius_km":79726.25,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 17092","host_v_mag":7.732,"eccentricity":0.17,"uncertainties":{"mass_kg":[4.346727119732107e+27,4.346727119732107e+27],"distance_ly":[8.84862252745525,8.84862252745525],"eccentricity":[0.05,0.05],"host_mass_solar":[2.24,2.24],"host_radius_solar":[1.27,1.27],"host_temperature_k":[148,148],"semi_major_axis_km":[8975872.241999999,8975872.241999999],"orbital_period_days":[2.4,2.4],"argument_of_periastron_deg":[13.4,13.4]},"host_mass_solar":6.73,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":13.58,"planets_in_system":1,"discovery_facility":"McDonald Observatory","host_spectral_type":"K0 III","host_temperature_k":4326,"orbital_period_days":359.89999,"periastron_epoch_bjd":2452969.5,"equilibrium_temperature_k":671.64,"argument_of_periastron_deg":347.4},"designations":[{"catalog":"Exoplanet","designation":"HD 17092 b"},{"catalog":"Host star","designation":"HD 17092"}],"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."}