{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.778","julian_year":2026.778,"time":"2026-10-12T01:30:29.774Z","years_from_j2000":26.778,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued position is carried along the great circle the object's own published motion puts it on, at a constant velocity, from the epoch that position was measured at, 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. The motion runs from position_epoch_jyear where the upstream publishes one — a timed pulsar's position belongs to the year it was timed — and from J2000 where it does not. 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-14252","name":"10 Tri","class":"a2v_white_main_sequence_star","category":"star","object_type":"A2V white main-sequence star","mag":5.29,"mag_band":"V","abs_mag":-0.022,"abs_mag_band":"V","distance_ly":376.623858666366,"distance_method":"parallax","ra_deg":34.737465,"dec_deg":28.642674,"epoch_ra_deg":35.128635,"epoch_dec_deg":28.766906,"epoch_moved_arcsec":0.18,"pm_ra_mas_yr":6.72,"pm_dec_mas_yr":-0.04,"position_epoch_jyear":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Triangulum","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-14252","source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0","attribution":"HYG Database v4.1, Astronexus (github.com/astronexus/HYG-Database). Fields derived from it stay under CC BY-SA 4.0.","commercial_use":"allowed"},"radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"02190+2839","age_years":400167260,"companions":[{"measured":2010,"magnitude":13.25,"components":null,"discoverer_code":"HJ 1115","separation_arcsec":58.3,"position_angle_deg":205}],"mass_solar":2.773,"radius_solar":3.805,"spectral_type":"A2V","color_index_bv":0.037,"luminosity_solar":88.87917198848203,"metallicity_fe_h":0.33,"radial_velocity_km_s":3,"spectral_type_source":"SIMBAD (quality C)","surface_gravity_log_g":3.629,"surface_temperature_k":9333,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":6.72,"proper_motion_dec_mas_yr":-0.04,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) — low confidence: above 7,500 K GSP-Phot's temperature and extinction are degenerate","bolometric_luminosity_solar":95.8038},"designations":[{"catalog":"Bayer/Flamsteed","designation":"10 Tri"},{"catalog":"HD","designation":"HD 14252"},{"catalog":"HIP","designation":"HIP 10793"},{"catalog":"HR","designation":"HR 675"}],"updated_at":"2026-10-01T09:42:28.932Z","attribution":"Data from SpaceCatalog.org. Each record names its upstream in `source`, with that producer's terms in `source.license`, the acknowledgement it asks for in `source.attribution`, and whether its terms allow commercial use in `source.commercial_use`; those terms govern the record, and citing SpaceCatalog does not discharge them."}