{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.680","julian_year":2026.68,"time":"2026-09-06T05:21:57.464Z","years_from_j2000":26.68,"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-88072-b","name":"HD 88072 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":117.12210292532711,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":152.3467466,"dec_deg":2.371054,"epoch_ra_deg":152.693798,"epoch_dec_deg":2.239433,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 88072","semi_major_axis_km":2078662413.3764997,"periapsis_km":null,"mass_kg":1.500087871187139e+28,"mass_msun":0.00754416,"constellation":"Sextans","discovered":"2022","featured":false,"url":"https://spacecatalog.org/object/hd-88072-b","radius_km":80364.06,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 88072","host_v_mag":7.55,"eccentricity":0.156,"uncertainties":{"mass_kg":[1.9095133473433164e+27,2.8984362638344847e+27],"distance_ly":[0.22374327511368597,0.22472174424683622],"eccentricity":[0.1,0.142],"host_mass_solar":[0.126,0.126],"inclination_deg":[1.723,1.394],"host_radius_solar":[0.050888,0.061896],"host_temperature_k":[126.44,144.92],"semi_major_axis_km":[303534079.65029997,619335184.698],"orbital_period_days":[3716.76086,8925.77796],"argument_of_periastron_deg":[65.047,52.453]},"host_mass_solar":1.04,"inclination_deg":169.626,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.032,"planets_in_system":1,"discovery_facility":"Multiple Observatories","host_temperature_k":5785.33,"orbital_period_days":18538.79293,"periastron_epoch_bjd":2435160.614,"equilibrium_temperature_k":76.03,"argument_of_periastron_deg":272.477},"designations":[{"catalog":"Exoplanet","designation":"HD 88072 b"},{"catalog":"Host star","designation":"HD 88072"}],"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."}