{"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":"2026-09-06T01:27:43.094Z","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-67087-b","name":"HD 67087 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":249.58040488727323,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":121.9155672,"dec_deg":31.5511553,"epoch_ra_deg":122.338144,"epoch_dec_deg":31.473566,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 67087","semi_major_axis_km":161565700.356,"periapsis_km":null,"mass_kg":5.810919335361012e+27,"mass_msun":0.0029224,"constellation":"Gemini","discovered":"2015","featured":false,"url":"https://spacecatalog.org/object/hd-67087-b","radius_km":83553.11,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 67087","host_v_mag":8.05,"eccentricity":0.17,"uncertainties":{"mass_kg":[3.822187435386483e+26,4.180517507453965e+26],"distance_ly":[1.0720760135549356,1.0812083921310045],"eccentricity":[0.07,0.07],"host_mass_solar":[0.04,0.04],"host_radius_solar":[0.32,0.32],"host_temperature_k":[47,47],"semi_major_axis_km":[5983914.828,5983914.828],"orbital_period_days":[1.6,1.7],"argument_of_periastron_deg":[17,21]},"host_mass_solar":1.36,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.55,"planets_in_system":2,"discovery_facility":"Multiple Observatories","host_spectral_type":"F8 V","host_temperature_k":6330,"orbital_period_days":352.2,"periastron_epoch_bjd":2450154.8,"equilibrium_temperature_k":365.67,"argument_of_periastron_deg":285},"designations":[{"catalog":"Exoplanet","designation":"HD 67087 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."}