{"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":"2026-09-02T04:09:48.628Z","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-37706","name":"HD 37706","class":"g9v_k5v_yellow_main_sequence_star","category":"star","object_type":"G9V+K5V yellow main-sequence star","mag":7.33,"mag_band":"V","abs_mag":5.298,"abs_mag_band":"V","distance_ly":83.1607439391935,"distance_method":"parallax","ra_deg":84.539265,"dec_deg":-46.106037,"epoch_ra_deg":84.727487,"epoch_dec_deg":-46.093202,"epoch_moved_arcsec":12.855,"pm_ra_mas_yr":-126.9,"pm_dec_mas_yr":-465.04,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Pictor","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-37706","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05382-4606","companions":[{"measured":2016,"magnitude":9.44,"components":null,"discoverer_code":"HJ 3784","separation_arcsec":4.8,"position_angle_deg":78}],"radius_solar":0.819,"spectral_type":"G9V+K5V","color_index_bv":0.769,"luminosity_solar":0.6619116119411207,"radial_velocity_km_s":11.4,"spectral_type_source":"SIMBAD (2014yCat....1.2023S, quality C)","surface_gravity_log_g":4.512,"surface_temperature_k":5539,"proper_motion_ra_mas_yr":-126.9,"proper_motion_dec_mas_yr":-465.04,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":0.5545},"designations":[{"catalog":"Gliese","designation":"GJ 3360A"},{"catalog":"HD","designation":"HD 37706"},{"catalog":"HIP","designation":"HIP 26501"}],"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."}