{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.830","julian_year":2026.83,"time":"2026-10-31T01:54:33.058Z","years_from_j2000":26.83,"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":"hip-116384","name":"HIP 116384","class":"k7v_orange_dwarf","category":"star","object_type":"K7V orange dwarf","mag":9.59,"mag_band":"V","abs_mag":8.193,"abs_mag_band":"V","distance_ly":62.054186268009886,"distance_method":"parallax","ra_deg":353.75115,"dec_deg":1.605403,"epoch_ra_deg":354.098992,"epoch_dec_deg":1.754791,"epoch_moved_arcsec":9.23,"pm_ra_mas_yr":342.97,"pm_dec_mas_yr":26.78,"position_epoch_jyear":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Pisces","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/hip-116384","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":"23350+0136","age_years":9678270000,"companions":[{"measured":2017,"magnitude":13.2,"components":"AC","discoverer_code":"MEL   9","separation_arcsec":0.9,"position_angle_deg":347},{"measured":2025,"magnitude":12,"components":"AB","discoverer_code":"MEL   9","separation_arcsec":1.3,"position_angle_deg":358}],"mass_solar":0.66,"radius_solar":0.766,"spectral_type":"K7V","uncertainties":{"metallicity_fe_h":[0.2,0.2]},"color_index_bv":1.329,"luminosity_solar":0.04600446663934779,"metallicity_fe_h":-0.1,"radial_velocity_km_s":-10.9,"spectral_type_source":"SIMBAD (2006A&A...460..695T, quality C)","surface_gravity_log_g":4.397,"surface_temperature_k":3897,"metallicity_fe_h_source":"One spectroscopic determination, compiled from the literature (PASTEL, Soubiran+ 2016)","proper_motion_ra_mas_yr":342.97,"proper_motion_dec_mas_yr":26.78,"stellar_parameters_method":"Gaia DR3 model fit (GSP-Phot, FLAME; RUWE ≤ 1.4)","bolometric_luminosity_solar":0.12},"designations":[{"catalog":"Exoplanet host","designation":"GJ 900 A"},{"catalog":"Gliese","designation":"Gl 900"},{"catalog":"HIP","designation":"HIP 116384"}],"updated_at":"2026-10-01T09:42:28.932Z","citation":{"plain":"SpaceCatalog. HIP 116384 [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/hip-116384","bibtex":"@misc{spacecatalog_hip-116384,\n  author       = {{SpaceCatalog}},\n  title        = {{HIP 116384}},\n  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},\n  year         = {2026},\n  url          = {https://spacecatalog.org/object/hip-116384},\n  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from HYG Database v4.1.}\n}","url":"https://spacecatalog.org/object/hip-116384","release":"DR1","doi":null},"references":[{"bibcode":"2006A&A...460..695T","ads_url":"https://ui.adsabs.harvard.edu/abs/2006A%26A...460..695T/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."}