{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.854","julian_year":2026.854,"time":"2026-11-08T22:37:30.252Z","years_from_j2000":26.854,"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-115319","name":"HD 115319","class":"k0iii_iv_orange_giant","category":"star","object_type":"K0III-IV orange giant","mag":6.46,"mag_band":"V","abs_mag":1.246,"abs_mag_band":"V","distance_ly":360.00406796859784,"distance_method":"parallax (Gaia DR3, zero point corrected)","ra_deg":199.05952635299525,"dec_deg":19.051734,"epoch_ra_deg":199.388485,"epoch_dec_deg":18.909116,"epoch_moved_arcsec":2.609,"pm_ra_mas_yr":-96.89,"pm_dec_mas_yr":7.31,"position_epoch_jyear":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Coma Berenices","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hd-115319","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":{"age_years":656625330,"mass_solar":2.452,"radius_solar":8.171,"spectral_type":"K0III-IV","uncertainties":{"distance_ly":[1.0128231760497008,1.0185543080062924],"metallicity_fe_h":[0.08,0.08]},"color_index_bv":0.972,"luminosity_solar":27.654325227560168,"metallicity_fe_h":-0.21,"radial_velocity_km_s":-45,"spectral_type_source":"SIMBAD (1997JApA...18..161Y, quality C)","surface_gravity_log_g":2.87,"surface_temperature_k":5070,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":-96.89,"proper_motion_dec_mas_yr":7.31,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":39.7763},"designations":[{"catalog":"HD","designation":"HD 115319"},{"catalog":"HIP","designation":"HIP 64751"},{"catalog":"HR","designation":"HR 5007"}],"updated_at":"2026-11-04T19:31:31.075Z","citation":{"plain":"SpaceCatalog. HD 115319 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hd-115319","bibtex":"@misc{spacecatalog_hd-115319,\n  author       = {{SpaceCatalog}},\n  title        = {{HD 115319}},\n  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},\n  year         = {2026},\n  url          = {https://spacecatalog.org/object/hd-115319},\n  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from HYG Database v4.1.}\n}","url":"https://spacecatalog.org/object/hd-115319","release":"DR1","doi":null},"references":[{"bibcode":"1997JApA...18..161Y","ads_url":"https://ui.adsabs.harvard.edu/abs/1997JApA...18..161Y/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."}