{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.687","julian_year":2026.687,"time":"2026-09-08T21:02:33.999Z","years_from_j2000":26.687,"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-135625-b","name":"HD 135625 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":184.33706155794906,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":229.4511514,"dec_deg":-45.9225871,"epoch_ra_deg":229.911908,"epoch_dec_deg":-46.021153,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 135625","semi_major_axis_km":807828501.78,"periapsis_km":null,"mass_kg":4.3656865794404574e+27,"mass_msun":0.00219557,"constellation":"Lupus","discovered":"2023","featured":false,"url":"https://spacecatalog.org/object/hd-135625-b","radius_km":84828.73000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 135625","host_v_mag":7.72,"eccentricity":0.16,"uncertainties":{"mass_kg":[5.6943737992701615e+26,1.5184996798053766e+27],"distance_ly":[0.37834139815142237,0.3802983364177228],"eccentricity":[0.03,0.04],"host_mass_solar":[0.06,0.06],"inclination_deg":[43,39],"host_radius_solar":[0.062722,0.049349],"host_temperature_k":[91.52,127.25],"semi_major_axis_km":[14959787.07,14959787.07],"orbital_period_days":[44,45],"argument_of_periastron_deg":[12,12]},"host_mass_solar":1.28,"inclination_deg":93,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":1.35743,"planets_in_system":1,"discovery_facility":"La Silla Observatory","host_spectral_type":"G3 IV/V","host_temperature_k":6040.64,"orbital_period_days":4055,"periastron_epoch_bjd":2455946,"equilibrium_temperature_k":146.04,"argument_of_periastron_deg":89},"designations":[{"catalog":"Exoplanet","designation":"HD 135625 b"},{"catalog":"Host star","designation":"HD 135625"}],"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."}