{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.672","julian_year":2026.672,"time":"2026-09-03T11:17:26.854Z","years_from_j2000":26.672,"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":"corot-7-d","name":"CoRoT-7 d","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":521.5436173517357,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":100.9561682,"dec_deg":-1.0630076,"epoch_ra_deg":101.297453,"epoch_dec_deg":-1.089603,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"CoRoT-7","semi_major_axis_km":null,"periapsis_km":null,"mass_kg":1.0237490158967981e+26,"mass_msun":0.0000514858,"constellation":"Monoceros","discovered":"2022","featured":false,"url":"https://spacecatalog.org/object/corot-7-d","radius_km":27489.611,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"CoRoT-7","host_v_mag":11.728,"uncertainties":{"mass_kg":[1.52409723986036e+25,1.52409723986036e+25],"distance_ly":[2.9549767821136954,2.990853983662537],"host_mass_solar":[0.017,0.017],"host_radius_solar":[0.0088,0.0093],"host_temperature_k":[60,60],"orbital_period_days":[1.546,1.546]},"host_mass_solar":0.915,"stars_in_system":1,"discovery_method":"Radial Velocity","host_radius_solar":0.8389,"planets_in_system":3,"discovery_facility":"La Silla Observatory","host_spectral_type":"G9 V","host_temperature_k":5250,"orbital_period_days":8.966},"designations":[{"catalog":"Exoplanet","designation":"CoRoT-7 d"},{"catalog":"Host star","designation":"CoRoT-7"}],"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."}