{"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":"2026-09-02T19:27:39.094Z","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-25532","name":"HD 25532","class":"f6iv_v_yellow_white_subgiant","category":"star","object_type":"F6IV-V yellow-white subgiant","mag":8.2,"mag_band":"V","abs_mag":1.227,"abs_mag_band":"V","distance_ly":809.32117410255,"distance_method":"parallax","ra_deg":61.045845,"dec_deg":23.407527,"epoch_ra_deg":61.446945,"epoch_dec_deg":23.480585,"epoch_moved_arcsec":3.94,"pm_ra_mas_yr":90.45,"pm_dec_mas_yr":-116.79,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Taurus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-25532","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"04042+2324","age_years":502961160,"companions":[{"measured":2015,"magnitude":15.68,"components":null,"discoverer_code":"OSO  17","separation_arcsec":17.4,"position_angle_deg":76}],"mass_solar":2.665,"radius_solar":6.901,"spectral_type":"F6IV-V","uncertainties":{"metallicity_fe_h":[0.167,0.167]},"color_index_bv":0.657,"luminosity_solar":28.1319605679996,"metallicity_fe_h":-1.26,"radial_velocity_km_s":-112.5,"spectral_type_source":"SIMBAD (quality C)","surface_gravity_log_g":3.044,"surface_temperature_k":6105,"metallicity_fe_h_source":"Median of 5 spectroscopic determinations in 9 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","proper_motion_ra_mas_yr":90.45,"proper_motion_dec_mas_yr":-116.79,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":64.8638},"designations":[{"catalog":"HD","designation":"HD 25532"},{"catalog":"HIP","designation":"HIP 18995"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T18:38:07.546Z","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."}