{"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":"2026-09-02T05:27:45.560Z","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-224930","name":"85 Peg","class":"g5vbfe_2_yellow_main_sequence_star","category":"star","object_type":"G5VbFe-2 yellow main-sequence star","mag":5.8,"mag_band":"V","abs_mag":5.374,"abs_mag_band":"V","distance_ly":39.69290501174996,"distance_method":"parallax","ra_deg":0.5420849999999999,"dec_deg":27.082256,"epoch_ra_deg":0.892345,"epoch_dec_deg":27.224937,"epoch_moved_arcsec":32.116,"pm_ra_mas_yr":778.59,"pm_dec_mas_yr":-918.72,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Pegasus","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-224930","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"00022+2705","companions":[{"measured":2018,"magnitude":8.9,"components":"AB","discoverer_code":"BU  733","separation_arcsec":0.7,"position_angle_deg":106},{"measured":1998,"magnitude":15.67,"components":"AE","discoverer_code":"HSW   1","separation_arcsec":100.9,"position_angle_deg":309},{"measured":2013,"magnitude":9.88,"components":"AC","discoverer_code":"BU  733","separation_arcsec":177.5,"position_angle_deg":324},{"measured":1998,"magnitude":14.2,"components":"AD","discoverer_code":"BU  733","separation_arcsec":206.4,"position_angle_deg":307}],"spectral_type":"G5VbFe-2","uncertainties":{"metallicity_fe_h":[0.149,0.149]},"color_index_bv":0.69,"luminosity_solar":0.6171631684555837,"metallicity_fe_h":-0.745,"radial_velocity_km_s":-37.6,"spectral_type_source":"SIMBAD (1989ApJS...71..245K, quality B)","surface_gravity_log_g":4.45,"surface_temperature_k":5400,"metallicity_fe_h_source":"Median of 26 spectroscopic determinations in 27 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","proper_motion_ra_mas_yr":778.59,"proper_motion_dec_mas_yr":-918.72,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Bayer/Flamsteed","designation":"85 Peg"},{"catalog":"Gliese","designation":"Gl 914A"},{"catalog":"HD","designation":"HD 224930"},{"catalog":"HIP","designation":"HIP 171"},{"catalog":"HR","designation":"HR 9088"}],"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."}