{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.681","julian_year":2026.681,"time":"2026-09-06T20:28:48.245Z","years_from_j2000":26.681,"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-92788-b","name":"HD 92788 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":113.02557882120482,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":160.7021351,"dec_deg":-2.1847173,"epoch_ra_deg":161.044344,"epoch_dec_deg":-2.325275,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 92788","semi_major_axis_km":145109934.579,"periapsis_km":null,"mass_kg":7.136984266459703e+27,"mass_msun":0.00358929,"constellation":"Sextans","discovered":"2000","featured":false,"url":"https://spacecatalog.org/object/hd-92788-b","radius_km":82915.3,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 92788","host_v_mag":7.31637,"eccentricity":0.35,"uncertainties":{"mass_kg":[2.8472011701302012e+26,3.0370145814722146e+26],"distance_ly":[0.19438920111917907,0.19471535749689584],"eccentricity":[0.005,0.004],"host_mass_solar":[0.07,0.07],"host_radius_solar":[0.02,0.02],"host_temperature_k":[24,24],"semi_major_axis_km":[2991957.414,2991957.414],"orbital_period_days":[0.036525,0.036525],"argument_of_periastron_deg":[1.16,1.01]},"host_mass_solar":1.15,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.14,"planets_in_system":2,"discovery_facility":"Multiple Observatories","host_spectral_type":"G6 V","host_temperature_k":5744,"orbital_period_days":325.803,"periastron_epoch_bjd":2455647.14,"transit_midpoint_bjd":2450581.2,"equilibrium_temperature_k":300.27,"argument_of_periastron_deg":-82.17},"designations":[{"catalog":"Exoplanet","designation":"HD 92788 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."}