{"id":1638921,"slug":"hd-191939-263461","name":"HD 191939","domain":"deep-sky","class":"star","otype":"MS*","otype_label":"MainSequence*","ra":302.02397977674,"dec":66.85057684363,"coo_err_mas":0.0123,"coo_bibcode":"2020yCat.1350....0G","plx_mas":18.6967,"pmra":150.194,"pmdec":-63.988,"rv_kms":-9.266,"redshift":-3.0907573e-05,"dist_pc":null,"vmag":null,"bmag":null,"gmag":8.782845,"jmag":7.597,"kmag":7.18,"sp_type":"G0","morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":70,"simbad_oid":263461,"gaia_dr3":2248126315275354496,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":4,"first_seen":"2026-08-14T16:49:54.419452+00:00","updated_at":"2026-10-11T03:23:48.263769+00:00","identifiers":["2MASS J20080574+6651019","AG+66 944","ASCC 92847","BD+66 1273","Gaia DR1 2248126310977227520","Gaia DR2 2248126315275354496","Gaia DR3 2248126315275354496","GC 27984","GSC 04244-00964","HD 191939","HIC 99175","HIP 99175","LSPM J2008+6651","PPM 22001","SAO 18731","TIC 269701147","TOI-1339","TYC 4244-964-1","USNO-B1.0 1568-00210024"],"measurements":[{"parameter":"effective_temperature","value":5348.0,"value_text":null,"unit":"K","err_plus":100.0,"err_minus":100.0,"band":null,"method":null,"source":"nasa-exo","reference":"Lubin et al. 2024","ref_year":2024},{"parameter":"effective_temperature","value":5385.0,"value_text":null,"unit":"K","err_plus":69.0,"err_minus":64.0,"band":null,"method":null,"source":"nasa-exo","reference":"MacDougall et al. 2023","ref_year":2023},{"parameter":"effective_temperature","value":5348.0,"value_text":null,"unit":"K","err_plus":100.0,"err_minus":100.0,"band":null,"method":null,"source":"nasa-exo","reference":"Lubin et al. 2022","ref_year":2022},{"parameter":"effective_temperature","value":5461.0,"value_text":null,"unit":"K","err_plus":109.63,"err_minus":127.64,"band":null,"method":null,"source":"nasa-exo","reference":"TICv8","ref_year":2021},{"parameter":"effective_temperature","value":5555.7,"value_text":null,"unit":"K","err_plus":313.7,"err_minus":313.7,"band":null,"method":null,"source":"nasa-exo","reference":"ExoFOP","ref_year":2020},{"parameter":"effective_temperature","value":5427.0,"value_text":null,"unit":"K","err_plus":50.0,"err_minus":50.0,"band":null,"method":null,"source":"nasa-exo","reference":"Badenas-Agusti et al. 2020","ref_year":2020},{"parameter":"mass","value":0.81,"value_text":null,"unit":"M_sun","err_plus":0.04,"err_minus":0.04,"band":null,"method":null,"source":"nasa-exo","reference":"Lubin et al. 2024","ref_year":2024},{"parameter":"mass","value":0.8222,"value_text":null,"unit":"M_sun","err_plus":0.0268,"err_minus":0.0261,"band":null,"method":null,"source":"nasa-exo","reference":"MacDougall et al. 2023","ref_year":2023},{"parameter":"mass","value":0.81,"value_text":null,"unit":"M_sun","err_plus":0.04,"err_minus":0.04,"band":null,"method":null,"source":"nasa-exo","reference":"Lubin et al. 2022","ref_year":2022},{"parameter":"mass","value":0.95,"value_text":null,"unit":"M_sun","err_plus":0.138523,"err_minus":0.09997,"band":null,"method":null,"source":"nasa-exo","reference":"TICv8","ref_year":2021},{"parameter":"mass","value":0.92,"value_text":null,"unit":"M_sun","err_plus":0.06,"err_minus":0.06,"band":null,"method":null,"source":"nasa-exo","reference":"Badenas-Agusti et al. 2020","ref_year":2020},{"parameter":"radius","value":0.94,"value_text":null,"unit":"R_sun","err_plus":0.02,"err_minus":0.02,"band":null,"method":null,"source":"nasa-exo","reference":"Lubin et al. 2024","ref_year":2024},{"parameter":"radius","value":0.934,"value_text":null,"unit":"R_sun","err_plus":0.0161,"err_minus":0.016,"band":null,"method":null,"source":"nasa-exo","reference":"MacDougall et al. 2023","ref_year":2023},{"parameter":"radius","value":0.94,"value_text":null,"unit":"R_sun","err_plus":0.02,"err_minus":0.02,"band":null,"method":null,"source":"nasa-exo","reference":"Lubin et al. 2022","ref_year":2022},{"parameter":"radius","value":0.920435,"value_text":null,"unit":"R_sun","err_plus":0.050654,"err_minus":0.041969,"band":null,"method":null,"source":"nasa-exo","reference":"TICv8","ref_year":2021},{"parameter":"radius","value":0.92,"value_text":null,"unit":"R_sun","err_plus":0.05,"err_minus":0.05,"band":null,"method":null,"source":"nasa-exo","reference":"ExoFOP","ref_year":2020},{"parameter":"radius","value":0.945,"value_text":null,"unit":"R_sun","err_plus":0.021,"err_minus":0.021,"band":null,"method":null,"source":"nasa-exo","reference":"Badenas-Agusti et al. 2020","ref_year":2020},{"parameter":"radius","value":0.920435,"value_text":null,"unit":"R_sun","err_plus":0.046311,"err_minus":0.046311,"band":null,"method":null,"source":"nasa-exo","reference":"ExoFOP","ref_year":2020}],"orbit":null,"exoplanet":null,"sources":[]}