{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.844","julian_year":2026.844,"time":"2026-11-05T10:10:48.194Z","years_from_j2000":26.844,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued position is carried along the great circle the object's own published motion puts it on, at a constant velocity, from the epoch that position was measured at, 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. The motion runs from position_epoch_jyear where the upstream publishes one — a timed pulsar's position belongs to the year it was timed — and from J2000 where it does not. 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-5425","name":"HD 5425","class":"k4_5vk_orange_dwarf","category":"star","object_type":"K4.5Vk: orange dwarf","mag":9.42,"mag_band":"V","abs_mag":6.956,"abs_mag_band":"V","distance_ly":101.45837096111657,"distance_method":"parallax (Gaia DR3, zero point corrected)","ra_deg":13.9552297503319,"dec_deg":-29.675956,"epoch_ra_deg":14.28496,"epoch_dec_deg":-29.528338,"epoch_moved_arcsec":11.579,"pm_ra_mas_yr":394.49,"pm_dec_mas_yr":174.42,"position_epoch_jyear":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Sculptor","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-5425","source":{"id":"hyg","name":"HYG Database v4.1","url":"https://github.com/astronexus/HYG-Database","license":"CC-BY-SA-4.0","attribution":"HYG Database v4.1, Astronexus (github.com/astronexus/HYG-Database). Fields derived from it stay under CC BY-SA 4.0.","commercial_use":"allowed"},"radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"wds_id":"00558-2941","companions":[{"measured":2016,"magnitude":13.2,"components":null,"discoverer_code":"HDS 123","separation_arcsec":1.2,"position_angle_deg":110}],"spectral_type":"K4.5Vk:","uncertainties":{"distance_ly":[0.057543521221990405,0.057608868558412185]},"color_index_bv":1.163,"luminosity_solar":0.1437884557051341,"radial_velocity_km_s":9.5,"spectral_type_source":"SIMBAD (2006AJ....132..161G, quality C)","proper_motion_ra_mas_yr":394.49,"proper_motion_dec_mas_yr":174.42},"designations":[{"catalog":"Gliese","designation":"GJ 3065"},{"catalog":"HD","designation":"HD 5425"},{"catalog":"HIP","designation":"HIP 4353"}],"updated_at":"2026-11-04T19:31:31.075Z","citation":{"plain":"SpaceCatalog. HD 5425 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hd-5425","bibtex":"@misc{spacecatalog_hd-5425,\n  author       = {{SpaceCatalog}},\n  title        = {{HD 5425}},\n  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},\n  year         = {2026},\n  url          = {https://spacecatalog.org/object/hd-5425},\n  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from HYG Database v4.1.}\n}","url":"https://spacecatalog.org/object/hd-5425","release":"DR1","doi":null},"references":[{"bibcode":"2006AJ....132..161G","ads_url":"https://ui.adsabs.harvard.edu/abs/2006AJ....132..161G/abstract","quantity":"properties.spectral_type_source"}],"attribution":"Data from SpaceCatalog.org. Each record names its upstream in `source`, with that producer's terms in `source.license`, the acknowledgement it asks for in `source.attribution`, and whether its terms allow commercial use in `source.commercial_use`; those terms govern the record, and citing SpaceCatalog does not discharge them."}