{"id":2604738,"slug":"gd-1-stream","name":"GD-1 Stream","domain":"deep-sky","class":"association","otype":"St*","otype_label":"Stream","ra":339.9,"dec":30.999999999999993,"coo_err_mas":null,"coo_bibcode":"2022MNRAS.516.5331M","plx_mas":null,"pmra":-6.75,"pmdec":-10.88,"rv_kms":-101.83,"redshift":-0.00033961065,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":334,"simbad_oid":5318048,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":1,"deep_at":"2026-09-16T02:27:03.372589+00:00","views":42,"first_seen":"2026-08-14T16:51:51.745621+00:00","updated_at":"2026-10-25T03:23:26.464805+00:00","identifiers":["GD-1 Stream","Grillmair Dionatos Stream","HIDDEN NAME GD1 stream"],"measurements":[{"parameter":"distance","value":8.06,"value_text":null,"unit":"kpc","err_plus":0.07,"err_minus":-0.07,"band":null,"method":"paral","source":"simbad","reference":"2022ApJ...926..107M","ref_year":2022},{"parameter":"pm_dec","value":-10.88,"value_text":null,"unit":"mas/yr","err_plus":0.05,"err_minus":0.05,"band":null,"method":"ICRS","source":"simbad","reference":"2022ApJ...926..107M","ref_year":2022},{"parameter":"pm_ra","value":-6.75,"value_text":null,"unit":"mas/yr","err_plus":0.04,"err_minus":0.04,"band":null,"method":"ICRS","source":"simbad","reference":"2022ApJ...926..107M","ref_year":2022},{"parameter":"radial_velocity","value":-101.83,"value_text":null,"unit":"km/s","err_plus":2.47,"err_minus":2.47,"band":null,"method":"v","source":"simbad","reference":"2022ApJ...926..107M","ref_year":2022}],"orbit":null,"exoplanet":null,"sources":[{"source":"simbad","url":"https://simbad.cds.unistra.fr/simbad/sim-basic?Ident=GD-1 Stream","fetched_at":"2026-09-16T02:27:03.368965+00:00"}]}