{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.654","julian_year":2026.654,"time":"2026-08-27T19:55:39.550Z","years_from_j2000":26.654,"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-197051","name":"β Pav","class":"a7iii_white_giant","category":"star","object_type":"A7III white giant","mag":3.42,"mag_band":"V","abs_mag":0.334,"abs_mag_band":"V","distance_ly":135.11027946916096,"distance_method":"parallax","ra_deg":311.23970999999995,"dec_deg":-66.203212,"epoch_ra_deg":311.839422,"epoch_dec_deg":-66.105763,"epoch_moved_arcsec":1.165,"pm_ra_mas_yr":-42.4,"pm_dec_mas_yr":10.57,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Pavo","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-197051","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"spectral_type":"A7III","color_index_bv":0.163,"luminosity_solar":64.0324324468947,"metallicity_fe_h":-0.36,"radial_velocity_km_s":10,"spectral_type_source":"SIMBAD (1975MSS...C01....0H, quality E)","surface_gravity_log_g":3.53,"surface_temperature_k":7998,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":-42.4,"proper_motion_dec_mas_yr":10.57,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Bayer/Flamsteed","designation":"Beta Pav"},{"catalog":"HD","designation":"HD 197051"},{"catalog":"HIP","designation":"HIP 102395"},{"catalog":"HR","designation":"HR 7913"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-27T19:16:43.430Z","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."}