{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.682","julian_year":2026.682,"time":"2026-09-06T23:14:14.008Z","years_from_j2000":26.682,"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":"epic-206042996-b","name":"EPIC 206042996 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":1473.4734060471546,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":337.5136198,"dec_deg":-13.6101475,"epoch_ra_deg":337.872035,"epoch_dec_deg":-13.472644,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"EPIC 206042996","semi_major_axis_km":null,"periapsis_km":null,"mass_kg":2.1081752573303568e+25,"mass_msun":0.0000106023,"constellation":"Aquarius","discovered":"2019","featured":false,"url":"https://spacecatalog.org/object/epic-206042996-b","radius_km":10842.77,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"EPIC 206042996","host_v_mag":16.59,"uncertainties":{"radius_km":[1275.6200000000001,1275.6200000000001],"distance_ly":[42.974364327958114,45.58361534969206],"host_mass_solar":[0.053,0.053],"inclination_deg":[3,3],"host_radius_solar":[0.04,0.04],"host_temperature_k":[99,99],"orbital_period_days":[0.0006,0.0006]},"host_mass_solar":0.565,"inclination_deg":90.5,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.5,"planets_in_system":2,"discovery_facility":"K2","host_temperature_k":4114,"orbital_period_days":5.2986,"transit_midpoint_bjd":2456989.0462},"designations":[{"catalog":"Exoplanet","designation":"EPIC 206042996 b"},{"catalog":"Host star","designation":"EPIC 206042996"}],"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."}