{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.674","julian_year":2026.674,"time":"2026-09-04T00:19:01.314Z","years_from_j2000":26.674,"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-36395","name":"HD 36395","class":"m1_5ve_red_dwarf","category":"star","object_type":"M1.5Ve red dwarf","mag":7.97,"mag_band":"V","abs_mag":9.207,"abs_mag_band":"V","distance_ly":18.45099244381389,"distance_method":"parallax","ra_deg":82.864155,"dec_deg":-3.677229,"epoch_ra_deg":83.204361,"epoch_dec_deg":-3.672337,"epoch_moved_arcsec":59.419,"pm_ra_mas_yr":763.05,"pm_dec_mas_yr":-2092.89,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Orion","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-36395","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"05314-0336","companions":[{"measured":2016,"magnitude":10.68,"components":null,"discoverer_code":"ENG  20","separation_arcsec":295.3,"position_angle_deg":318}],"spectral_type":"M1.5Ve","uncertainties":{"metallicity_fe_h":[0.195,0.195]},"color_index_bv":1.474,"luminosity_solar":0.018080065521100055,"metallicity_fe_h":0.405,"radial_velocity_km_s":8.5,"spectral_type_source":"SIMBAD (1989ApJS...71..245K, quality B)","surface_gravity_log_g":4.75,"surface_temperature_k":3737,"metallicity_fe_h_source":"Median of 2 spectroscopic determinations in 5 papers, compiled from the literature (PASTEL, Soubiran+ 2016); the error bar is the scatter between them","proper_motion_ra_mas_yr":763.05,"proper_motion_dec_mas_yr":-2092.89,"stellar_parameters_method":"Spectroscopic determinations compiled from the literature (PASTEL, Soubiran+ 2016)"},"designations":[{"catalog":"Gliese","designation":"Gl 205"},{"catalog":"HD","designation":"HD 36395"},{"catalog":"HIP","designation":"HIP 25878"}],"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."}