{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.685","julian_year":2026.685,"time":"2026-09-08T07:15:55.920Z","years_from_j2000":26.685,"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":"moa-2022-blg-033l-b","name":"MOA-2022-BLG-033L b","class":"neptune_like_planet","category":"exoplanet","object_type":"Neptune-like planet","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":6001.277349988079,"distance_method":"NASA Exoplanet Archive sy_dist (Han+ 2025, 2025A&A...694A..90H)","ra_deg":272.8756667,"dec_deg":-25.0530806,"epoch_ra_deg":273.289828,"epoch_dec_deg":-25.047343,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"MOA-2022-BLG-033L","semi_major_axis_km":321635422.00499994,"periapsis_km":null,"mass_kg":7.256183959366526e+25,"mass_msun":0.0000364924,"constellation":"Sagittarius","discovered":"2025","featured":false,"url":"https://spacecatalog.org/object/moa-2022-blg-033l-b","radius_km":22450.912,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"MOA-2022-BLG-033L","uncertainties":{"mass_kg":[3.732604917369612e+25,5.619809963591688e+25],"distance_ly":[2087.400817387158,3261.563777167434],"host_mass_solar":[0.26,0.39],"semi_major_axis_km":[112198403.02499999,175029508.71899998]},"host_mass_solar":0.51,"stars_in_system":1,"discovery_method":"Microlensing","planets_in_system":1,"discovery_facility":"MOA","host_spectral_type":"F7 V"},"designations":[{"catalog":"Exoplanet","designation":"MOA-2022-BLG-033L b"},{"catalog":"Host star","designation":"MOA-2022-BLG-033L"}],"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."}