{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.654","julian_year":2026.654,"time":"2026-08-27T20:23:07.964Z","years_from_j2000":26.654,"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-144695","name":"HD 144695","class":"o8_9_5_ib_ii_blue_supergiant","category":"star","object_type":"O8/9.5(Ib/II) blue supergiant","mag":9.73,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":null,"distance_method":null,"ra_deg":242.380395,"dec_deg":-49.947324,"epoch_ra_deg":242.881117,"epoch_dec_deg":-50.018103,"epoch_moved_arcsec":0.097,"pm_ra_mas_yr":-2.18,"pm_dec_mas_yr":-2.9,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Norma","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-144695","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"spectral_type":"O8/9.5(Ib/II)","color_index_bv":0.57,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (1978MSS...C02....0H, quality E)","proper_motion_ra_mas_yr":-2.18,"proper_motion_dec_mas_yr":-2.9},"designations":[{"catalog":"HD","designation":"HD 144695"},{"catalog":"HIP","designation":"HIP 79172"}],"source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-27T19:16:43.430Z","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."}