{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.677","julian_year":2026.677,"time":"2026-09-05T06:43:16.416Z","years_from_j2000":26.677,"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":"hip-85647","name":"HIP 85647","class":"m0v_red_dwarf","category":"star","object_type":"M0V red dwarf","mag":9.58,"mag_band":"V","abs_mag":8.499,"abs_mag_band":"V","distance_ly":53.653050290782005,"distance_method":"parallax","ra_deg":262.54707,"dec_deg":-51.636977,"epoch_ra_deg":263.075257,"epoch_dec_deg":-51.659339,"epoch_moved_arcsec":8.507,"pm_ra_mas_yr":-259.23,"pm_dec_mas_yr":-185.69,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Ara","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-85647","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"17302-5138","companions":[{"measured":2016,"magnitude":13.37,"components":null,"discoverer_code":"LDS 599","separation_arcsec":47.6,"position_angle_deg":101}],"spectral_type":"M0V","color_index_bv":1.46,"luminosity_solar":0.03470563540079872,"radial_velocity_km_s":-27.2,"spectral_type_source":"SIMBAD (1972AJ.....77..486U, quality C)","proper_motion_ra_mas_yr":-259.23,"proper_motion_dec_mas_yr":-185.69},"designations":[{"catalog":"Exoplanet host","designation":"GJ 676 A"},{"catalog":"Gliese","designation":"Gl 676A"},{"catalog":"HIP","designation":"HIP 85647"}],"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."}