{"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":"2026-09-04T05:51:25.538Z","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":"hip-13607","name":"HIP 13607","class":"k0_orange_star","category":"star","object_type":"K0 orange star","mag":8.73,"mag_band":"V","abs_mag":0.331,"abs_mag_band":"V","distance_ly":1560.5568327411474,"distance_method":"parallax","ra_deg":43.836,"dec_deg":24.736842,"epoch_ra_deg":44.227843,"epoch_dec_deg":24.845769,"epoch_moved_arcsec":1.793,"pm_ra_mas_yr":64,"pm_dec_mas_yr":-20.58,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Aries","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-13607","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"age_years":376911640,"mass_solar":3.001,"radius_solar":11.114,"spectral_type":"K0","color_index_bv":1.189,"luminosity_solar":64.2096052567594,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (quality D)","surface_gravity_log_g":2.687,"surface_temperature_k":4938,"proper_motion_ra_mas_yr":64,"proper_motion_dec_mas_yr":-20.58,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":72.0913},"designations":[{"catalog":"HIP","designation":"HIP 13607"}],"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."}