{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T14:57:56.420Z","years_from_j2000":26.67,"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-72204","name":"HD 72204","class":"g8_k0iv_v_yellow_subgiant","category":"star","object_type":"G8/K0IV/V yellow subgiant","mag":9.33,"mag_band":"V","abs_mag":4.288,"abs_mag_band":"V","distance_ly":332.47337444036134,"distance_method":"parallax","ra_deg":125.64991500000001,"dec_deg":-78.673217,"epoch_ra_deg":125.37386,"epoch_dec_deg":-78.757181,"epoch_moved_arcsec":4.369,"pm_ra_mas_yr":-96.06,"pm_dec_mas_yr":132.72,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Chamaeleon","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-72204","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"08226-7840","companions":[{"measured":2025,"magnitude":12.18,"components":"AB","discoverer_code":"RST2561","separation_arcsec":2.5,"position_angle_deg":340},{"measured":2015,"magnitude":14.04,"components":"AC","discoverer_code":"UC 1665","separation_arcsec":52.2,"position_angle_deg":283}],"spectral_type":"G8/K0IV/V","color_index_bv":0.833,"luminosity_solar":1.6780310782909555,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1975MSS...C01....0H, quality E)","proper_motion_ra_mas_yr":-96.06,"proper_motion_dec_mas_yr":132.72},"designations":[{"catalog":"HD","designation":"HD 72204"},{"catalog":"HIP","designation":"HIP 41048"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-01T22:58:55.274Z","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."}