{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.683","julian_year":2026.683,"time":"2026-09-07T11:36:04.327Z","years_from_j2000":26.683,"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":"hd-235088-b","name":"HD 235088 b","class":"super_earth","category":"exoplanet","object_type":"Super-Earth","mag":null,"mag_band":null,"abs_mag":null,"abs_mag_band":null,"distance_ly":134.28053764424956,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":300.6154535,"dec_deg":53.3774418,"epoch_ra_deg":300.784851,"epoch_dec_deg":53.45183,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"HD 235088","semi_major_axis_km":10561609.671419999,"periapsis_km":null,"mass_kg":2.4784496651334225e+25,"mass_msun":0.0000124645,"constellation":"Cygnus","discovered":"2023","featured":false,"url":"https://spacecatalog.org/object/hd-235088-b","radius_km":12641.3942,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"HD 235088","host_v_mag":9.19,"eccentricity":0,"uncertainties":{"mass_kg":[4.956899330266845e+24,4.956899330266845e+24],"radius_km":[440.0889000000001,459.2232],"distance_ly":[0.13502874037473178,0.13502874037473178],"host_mass_solar":[0.009,0.009],"inclination_deg":[0.19,0.2],"host_radius_solar":[0.029,0.029],"host_temperature_k":[75,75],"semi_major_axis_km":[82278.828885,80782.850178],"orbital_period_days":[0.0000044,0.0000042]},"host_mass_solar":0.849,"inclination_deg":88.74,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":0.772,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_spectral_type":"K V","host_temperature_k":5075,"orbital_period_days":7.4341325,"transit_midpoint_bjd":2458705.64614,"equilibrium_temperature_k":805,"argument_of_periastron_deg":90},"designations":[{"catalog":"Exoplanet","designation":"HD 235088 b"},{"catalog":"Host star","designation":"HD 235088"}],"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."}