{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.654","julian_year":2026.654,"time":"2026-08-27T17:42:11.615Z","years_from_j2000":26.654,"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":"kitalpha","name":"Kitalpha","class":"g6iv_b9_5v_yellow_subgiant","category":"star","object_type":"G6IV+B9.5V yellow subgiant","mag":3.92,"mag_band":"V","abs_mag":0.09,"abs_mag_band":"V","distance_ly":190.28974160765733,"distance_method":"parallax","ra_deg":318.955965,"dec_deg":5.247845,"epoch_ra_deg":319.291112,"epoch_dec_deg":5.358632,"epoch_moved_arcsec":2.974,"pm_ra_mas_yr":59.63,"pm_dec_mas_yr":-94.33,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Equuleus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/kitalpha","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"spectral_type":"G6IV+B9.5V","color_index_bv":0.549,"luminosity_solar":80.16780633876789,"radial_velocity_km_s":-16,"spectral_type_source":"SIMBAD (2000ApJ...541..298W, quality C)","proper_motion_ra_mas_yr":59.63,"proper_motion_dec_mas_yr":-94.33},"designations":[{"catalog":"Bayer/Flamsteed","designation":"8 Alpha Equ"},{"catalog":"Common name","designation":"Kitalpha"},{"catalog":"HD","designation":"HD 202447"},{"catalog":"HIP","designation":"HIP 104987"},{"catalog":"HR","designation":"HR 8131"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-27T16:03:54.983Z","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."}