{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.683","julian_year":2026.683,"time":"2026-09-07T11:33:28.715Z","years_from_j2000":26.683,"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-126525-b","name":"HD 126525 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":122.7998331486202,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":216.8852514,"dec_deg":-51.9329118,"epoch_ra_deg":217.342653,"epoch_dec_deg":-52.05358,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 126525","semi_major_axis_km":274811288.4759,"periapsis_km":null,"mass_kg":4.498577848805718e+26,"mass_msun":0.00022624,"constellation":"Lupus","discovered":"2018","featured":false,"url":"https://spacecatalog.org/object/hd-126525-b","radius_km":65694.43000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 126525","host_v_mag":7.85,"eccentricity":0.035,"uncertainties":{"mass_kg":[3.796268226840268e+24,3.796268226840268e+24],"distance_ly":[0.21624167842620087,0.21689399118163438],"eccentricity":[0.024,0.039],"host_mass_solar":[0.01,0.01],"host_radius_solar":[0.03,0.03],"host_temperature_k":[13,13],"semi_major_axis_km":[1495978.707,1495978.707],"orbital_period_days":[6.33,6.19],"argument_of_periastron_deg":[184.079,76.249]},"host_mass_solar":0.897,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":0.979,"planets_in_system":1,"discovery_facility":"La Silla Observatory","host_spectral_type":"G4 V","host_temperature_k":5638,"orbital_period_days":960.41,"periastron_epoch_bjd":2456161.7,"equilibrium_temperature_k":198.47,"argument_of_periastron_deg":247.506},"designations":[{"catalog":"Exoplanet","designation":"HD 126525 b"},{"catalog":"Host star","designation":"HD 126525"}],"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."}