{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.668","julian_year":2026.668,"time":"2026-09-02T03:17:48.868Z","years_from_j2000":26.668,"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-98069","name":"HD 98069","class":"a9vka2ma2_lb_white_main_sequence_star","category":"star","object_type":"A9VkA2mA2(_lB) white main-sequence star","mag":8.15,"mag_band":"V","abs_mag":1.411,"abs_mag_band":"V","distance_ly":726.4060259157771,"distance_method":"parallax","ra_deg":169.18592999999998,"dec_deg":-3.942915,"epoch_ra_deg":169.527845,"epoch_dec_deg":-4.089407,"epoch_moved_arcsec":0.09,"pm_ra_mas_yr":1.66,"pm_dec_mas_yr":-2.92,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Leo","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-98069","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"spectral_type":"A9VkA2mA2(_lB)","color_index_bv":0.202,"luminosity_solar":23.746521436516744,"radial_velocity_km_s":0,"spectral_type_source":"SIMBAD (2020MNRAS.499.2701M, quality C)","proper_motion_ra_mas_yr":1.66,"proper_motion_dec_mas_yr":-2.92},"designations":[{"catalog":"HD","designation":"HD 98069"},{"catalog":"HIP","designation":"HIP 55090"}],"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."}