{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.669","julian_year":2026.669,"time":"2026-09-02T07:23:11.198Z","years_from_j2000":26.669,"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-46136","name":"HD 46136","class":"f7iii_yellow_white_giant","category":"star","object_type":"F7III yellow-white giant","mag":6.26,"mag_band":"V","abs_mag":1.738,"abs_mag_band":"V","distance_ly":261.76267175137133,"distance_method":"parallax","ra_deg":98.077275,"dec_deg":17.784349,"epoch_ra_deg":98.469089,"epoch_dec_deg":17.765317,"epoch_moved_arcsec":1.193,"pm_ra_mas_yr":36.43,"pm_dec_mas_yr":25.96,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Gemini","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-46136","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"06323+1747","age_years":1170584100,"companions":[{"measured":2019,"magnitude":6.88,"components":"AB","discoverer_code":"STF 924","separation_arcsec":19.9,"position_angle_deg":211}],"mass_solar":1.971,"radius_solar":4.347,"spectral_type":"F7III","color_index_bv":0.541,"luminosity_solar":17.571142465950942,"variable_mag_max":6.052,"variable_mag_min":6.362,"radial_velocity_km_s":0.4,"spectral_type_source":"SIMBAD (2008ApJS..176..216A, quality C)","surface_gravity_log_g":3.371,"surface_temperature_k":5986,"proper_motion_ra_mas_yr":36.43,"proper_motion_dec_mas_yr":25.96,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":21.8606},"designations":[{"catalog":"HD","designation":"HD 46136"},{"catalog":"HIP","designation":"HIP 31158"}],"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."}