{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.684","julian_year":2026.684,"time":"2026-09-07T17:08:23.711Z","years_from_j2000":26.684,"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":"tic-77319217-b","name":"TIC 77319217 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":872.8596980455487,"distance_method":"NASA Exoplanet Archive sy_dist (TICv8, 2019AJ....158..138S)","ra_deg":71.0406969,"dec_deg":-39.8976018,"epoch_ra_deg":71.267333,"epoch_dec_deg":-39.847102,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":"TIC 77319217","semi_major_axis_km":null,"periapsis_km":null,"mass_kg":5.882585349774508e+25,"mass_msun":0.0000295844,"constellation":"Caelum","discovered":"2026","featured":false,"url":"https://spacecatalog.org/object/tic-77319217-b","radius_km":19828.207047806,"radius_kind":null,"data_quality":null,"description":null,"properties":{"host_star":"TIC 77319217","host_v_mag":11.497,"uncertainties":{"radius_km":[1888.891025622,2197.381353694],"distance_ly":[5.971923275993571,6.050200806645591],"host_mass_solar":[0.114537,0.199062],"inclination_deg":[2.69147,1.68884],"orbital_period_days":[0.00008716393,0.00008541633]},"host_mass_solar":1.16,"inclination_deg":87.65397,"stars_in_system":1,"discovery_method":"Transit","host_radius_solar":1.18439,"planets_in_system":1,"discovery_facility":"Transiting Exoplanet Survey Satellite (TESS)","host_temperature_k":5961.52,"orbital_period_days":7.54830765124,"transit_midpoint_bjd":2459150.69923473},"designations":[{"catalog":"Exoplanet","designation":"TIC 77319217 b"},{"catalog":"Host star","designation":"TIC 77319217"}],"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."}