{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-01T19:40:59.566Z","years_from_j2000":26.668,"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-295-d","name":"Kepler-295 d","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":5542.016554525133,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":285.3458383,"dec_deg":45.3677754,"epoch_ra_deg":285.543181,"epoch_dec_deg":45.40535,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"Kepler-295","semi_major_axis_km":28722791.174399998,"periapsis_km":null,"mass_kg":1.4452646240055138e+25,"mass_msun":0.00000726844,"constellation":"Lyra","discovered":"2014","featured":false,"url":"https://spacecatalog.org/object/kepler-295-d","radius_km":8674.216,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"Kepler-295","host_v_mag":14.631,"eccentricity":0,"uncertainties":{"radius_km":[4592.232,4592.232],"distance_ly":[220.5143269742902,239.13785614191625],"host_mass_solar":[0.044,0.037],"host_radius_solar":[0.473,0.473],"host_temperature_k":[200,200],"orbital_period_days":[0.000685,0.000685]},"host_mass_solar":0.89,"inclination_deg":85.87,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.898,"planets_in_system":3,"discovery_facility":"Kepler","host_temperature_k":5603,"orbital_period_days":33.884054,"transit_midpoint_bjd":2454993.00625,"equilibrium_temperature_k":533},"designations":[{"catalog":"Exoplanet","designation":"Kepler-295 d"}],"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."}