{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.663","julian_year":2026.663,"time":"2026-08-31T01:11:11.166Z","years_from_j2000":26.663,"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":"dofida","name":"Dofida","class":"g0v_yellow_main_sequence_star","category":"star","object_type":"G0V yellow main-sequence star","mag":7.17,"mag_band":"V","abs_mag":4.273,"abs_mag_band":"V","distance_ly":123.82559495653935,"distance_method":"parallax","ra_deg":203.10645,"dec_deg":-47.271363,"epoch_ra_deg":203.512549,"epoch_dec_deg":-47.410461,"epoch_moved_arcsec":3.389,"pm_ra_mas_yr":25.04,"pm_dec_mas_yr":-124.63,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Centaurus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/dofida","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"age_years":7631313000,"mass_solar":1.031,"radius_solar":1.238,"spectral_type":"G0V","uncertainties":{"metallicity_fe_h":[0.037,0.037]},"color_index_bv":0.603,"luminosity_solar":1.701374815899198,"metallicity_fe_h":0.03,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (2006AJ....132..161G, quality C)","surface_gravity_log_g":4.188,"surface_temperature_k":5847,"metallicity_fe_h_source":"Median of 11 spectroscopic determinations in 11 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","proper_motion_ra_mas_yr":25.04,"proper_motion_dec_mas_yr":-124.63,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4) — low confidence: Gaia's classifier calls the source a binary, which GSP-Phot fitted as one star","bolometric_luminosity_solar":1.6031},"designations":[{"catalog":"Common name","designation":"Dofida"},{"catalog":"HD","designation":"HD 117618"},{"catalog":"HIP","designation":"HIP 66047"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}