{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-01T19:40:21.049Z","years_from_j2000":26.668,"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-25329","name":"HD 25329","class":"k1vbfe_2_orange_dwarf","category":"star","object_type":"K1VbFe-2 orange dwarf","mag":8.51,"mag_band":"V","abs_mag":7.199,"abs_mag_band":"V","distance_ly":59.64813066959347,"distance_method":"parallax","ra_deg":60.811544999999995,"dec_deg":35.273276,"epoch_ra_deg":61.263061,"epoch_dec_deg":35.337542,"epoch_moved_arcsec":58.827,"pm_ra_mas_yr":1732.49,"pm_dec_mas_yr":-1365.5,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Perseus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-25329","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"04033+3516","companions":[{"measured":1994,"magnitude":16.8,"components":null,"discoverer_code":"OSO  16","separation_arcsec":16.1,"position_angle_deg":240}],"radius_solar":0.553,"spectral_type":"K1VbFe-2","uncertainties":{"metallicity_fe_h":[0.197,0.197]},"color_index_bv":0.863,"luminosity_solar":0.11492115972032405,"metallicity_fe_h":-1.735,"radial_velocity_km_s":-25.6,"spectral_type_source":"SIMBAD (1989ApJS...71..245K, quality C)","surface_gravity_log_g":4.721,"surface_temperature_k":4819,"metallicity_fe_h_source":"Median of 24 spectroscopic determinations in 31 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","proper_motion_ra_mas_yr":1732.49,"proper_motion_dec_mas_yr":-1365.5,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":0.1473},"designations":[{"catalog":"Gliese","designation":"Gl 158"},{"catalog":"HD","designation":"HD 25329"},{"catalog":"HIP","designation":"HIP 18915"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}