{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.671","julian_year":2026.671,"time":"2026-09-03T01:21:15.126Z","years_from_j2000":26.671,"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-6288","name":"26 Cet","class":"a8iv_white_subgiant","category":"star","object_type":"A8IV white subgiant","mag":6.06,"mag_band":"V","abs_mag":2.164,"abs_mag_band":"V","distance_ly":196.12533151776532,"distance_method":"parallax","ra_deg":15.954285000000002,"dec_deg":1.366846,"epoch_ra_deg":16.300211,"epoch_dec_deg":1.510783,"epoch_moved_arcsec":3.441,"pm_ra_mas_yr":122.42,"pm_dec_mas_yr":-40.69,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Cetus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-6288","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"01038+0122","age_years":1094367600,"companions":[{"measured":2024,"magnitude":9.52,"components":"AB","discoverer_code":"STF  84","separation_arcsec":15.9,"position_angle_deg":254},{"measured":2015,"magnitude":14.09,"components":"AC","discoverer_code":"BU 1355","separation_arcsec":119.2,"position_angle_deg":291}],"mass_solar":1.673,"radius_solar":1.93,"spectral_type":"A8IV","color_index_bv":0.271,"luminosity_solar":11.868613846449191,"radial_velocity_km_s":6,"spectral_type_source":"SIMBAD (1999MSS...C05....0H, quality C)","surface_gravity_log_g":4.039,"surface_temperature_k":7435,"proper_motion_ra_mas_yr":122.42,"proper_motion_dec_mas_yr":-40.69,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":10.2412},"designations":[{"catalog":"Bayer/Flamsteed","designation":"26 Cet"},{"catalog":"HD","designation":"HD 6288"},{"catalog":"HIP","designation":"HIP 4979"},{"catalog":"HR","designation":"HR 301"}],"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."}