{"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":"2026-09-07T14:43:26.271Z","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":"hip-59442","name":"HIP 59442","class":"k2_orange_star","category":"star","object_type":"K2 orange star","mag":11.49,"mag_band":"V","abs_mag":5.584,"abs_mag_band":"V","distance_ly":494.92632152265,"distance_method":"parallax","ra_deg":182.886165,"dec_deg":65.024539,"epoch_ra_deg":183.214561,"epoch_dec_deg":64.873481,"epoch_moved_arcsec":8.032,"pm_ra_mas_yr":-214.42,"pm_dec_mas_yr":-211.27,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Draco","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-59442","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"12115+6501","age_years":336119680,"companions":[{"measured":2016,"magnitude":15.25,"components":null,"discoverer_code":"NSN 625","separation_arcsec":2,"position_angle_deg":235}],"mass_solar":0.769,"radius_solar":0.691,"spectral_type":"K2","luminosity_solar":0.5086276903064367,"variable_mag_max":11.402,"variable_mag_min":11.562,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1985ApJS...59..197B, quality D)","surface_gravity_log_g":4.573,"surface_temperature_k":4692,"proper_motion_ra_mas_yr":-214.42,"proper_motion_dec_mas_yr":-211.27,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":0.2088},"designations":[{"catalog":"HIP","designation":"HIP 59442"}],"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."}