{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T11:05:37.516Z","years_from_j2000":26.667,"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-960-b","name":"Kepler-960 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":929.2717051354367,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":281.4572217,"dec_deg":46.7465538,"epoch_ra_deg":281.644991,"epoch_dec_deg":46.774213,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-960","semi_major_axis_km":5695190.937549,"periapsis_km":null,"mass_kg":3.4996903705257484e+25,"mass_msun":0.0000176004,"constellation":"Lyra","discovered":"2016","featured":false,"url":"https://spacecatalog.org/object/kepler-960-b","radius_km":14605.849,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-960","host_v_mag":14.127,"eccentricity":0,"uncertainties":{"radius_km":[1594.525,446.46700000000004],"distance_ly":[5.218502043467895,5.218502043467895],"host_mass_solar":[0.038,0.033],"host_radius_solar":[0.03,0.023],"host_temperature_k":[40.53,41.26],"semi_major_axis_km":[37399.467675,37399.467675],"orbital_period_days":[0.000001668,0.000001668]},"host_mass_solar":0.77,"inclination_deg":87.93,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.72,"planets_in_system":1,"discovery_facility":"Kepler","host_temperature_k":4755,"orbital_period_days":3.12686223,"transit_midpoint_bjd":2454966.724506,"equilibrium_temperature_k":1391},"designations":[{"catalog":"Exoplanet","designation":"Kepler-960 b"},{"catalog":"Host star","designation":"Kepler-960"}],"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":"2026-08-30T09:56:50.739Z","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."}