{"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":"2026-09-08T05:58:57.663Z","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":"kepler-860-b","name":"Kepler-860 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":3445.3855116485906,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":295.5772681,"dec_deg":46.2547028,"epoch_ra_deg":295.779495,"epoch_dec_deg":46.317442,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-860","semi_major_axis_km":8676676.500599999,"periapsis_km":null,"mass_kg":6.3304979398588615e+25,"mass_msun":0.000031837,"constellation":"Cygnus","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/kepler-860-b","radius_km":20665.044,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-860","host_v_mag":15.544,"eccentricity":0,"uncertainties":{"radius_km":[2104.773,5166.261],"distance_ly":[87.91545161354819,87.91545161354819],"host_mass_solar":[0.056,0.065],"host_radius_solar":[0.106,0.264],"host_temperature_k":[111.94,75.4],"orbital_period_days":[0.000008945,0.000008945]},"host_mass_solar":1.04,"inclination_deg":89.9,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.06,"planets_in_system":1,"discovery_facility":"Kepler","host_temperature_k":5836,"orbital_period_days":5.101379454,"transit_midpoint_bjd":2455190.4825,"equilibrium_temperature_k":1050},"designations":[{"catalog":"Exoplanet","designation":"Kepler-860 b"},{"catalog":"Host star","designation":"Kepler-860"}],"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."}