{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.683","julian_year":2026.683,"time":"2026-09-07T09:23:28.448Z","years_from_j2000":26.683,"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-114905","name":"HD 114905","class":"f7v_yellow_white_main_sequence_star","category":"star","object_type":"F7V yellow-white main-sequence star","mag":6.83,"mag_band":"V","abs_mag":2.888,"abs_mag_band":"V","distance_ly":200.34188116888737,"distance_method":"parallax","ra_deg":198.26495999999997,"dec_deg":38.277135,"epoch_ra_deg":198.575239,"epoch_dec_deg":38.133736,"epoch_moved_arcsec":5.072,"pm_ra_mas_yr":160.13,"pm_dec_mas_yr":-102.43,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Canes Venatici","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-114905","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"13131+3817","age_years":2729218500,"companions":[{"measured":2016,"magnitude":13.29,"components":null,"discoverer_code":"NSN 639","separation_arcsec":6.6,"position_angle_deg":76}],"mass_solar":1.421,"radius_solar":2.051,"spectral_type":"F7V","color_index_bv":0.474,"luminosity_solar":6.09256259749656,"radial_velocity_km_s":-3.6,"spectral_type_source":"SIMBAD (quality C)","surface_gravity_log_g":3.949,"surface_temperature_k":6250,"proper_motion_ra_mas_yr":160.13,"proper_motion_dec_mas_yr":-102.43,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":5.7875},"designations":[{"catalog":"HD","designation":"HD 114905"},{"catalog":"HIP","designation":"HIP 64484"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","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."}