{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T23:18:55.340Z","years_from_j2000":26.684,"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":"psr-j2322-2650-b","name":"PSR J2322-2650 b","class":"gas_giant","category":"exoplanet","object_type":"Gas giant","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":750.1596687485098,"distance_method":"NASA Exoplanet Archive sy_dist (Spiewak+ 2018, 2018MNRAS.475..469S)","ra_deg":350.6443481,"dec_deg":-26.8495331,"epoch_ra_deg":351.001811,"epoch_dec_deg":-26.702228,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"PSR J2322-2650","semi_major_axis_km":1525898.28114,"periapsis_km":null,"mass_kg":1.5088268067576646e+27,"mass_msun":0.000758811,"constellation":"Sculptor","discovered":"2017","featured":false,"url":"https://spacecatalog.org/object/psr-j2322-2650-b","radius_km":88655.59000000001,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"PSR J2322-2650","uncertainties":{"mass_kg":[3.796268226840268e+23,3.796268226840268e+23],"distance_ly":[163.0781888583717,293.54073994506905],"orbital_period_days":[6e-9,6e-9]},"host_mass_solar":1.4,"stars_in_system":1,"discovery_method":"Pulsar Timing","planets_in_system":1,"discovery_facility":"Parkes Observatory","orbital_period_days":0.322963997,"eccentricity_upper_limit":0.0017},"designations":[{"catalog":"Exoplanet","designation":"PSR J2322-2650 b"},{"catalog":"Host star","designation":"PSR J2322-2650"}],"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."}