{"id":2800135,"slug":"kepler-57-7822575","name":"Kepler-57","domain":"deep-sky","class":"star","otype":"Er*","otype_label":"Eruptive*","ra":293.64128913462,"dec":44.65704399226,"coo_err_mas":0.0139,"coo_bibcode":"2020yCat.1350....0G","plx_mas":1.5232,"pmra":4.209,"pmdec":5.842,"rv_kms":-19.9498,"redshift":-6.654316e-05,"dist_pc":null,"vmag":15.035,"bmag":16.019,"gmag":14.761509,"jmag":13.437,"kmag":12.897,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":82,"simbad_oid":7822575,"gaia_dr3":null,"jpl_spkid":null,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":7,"first_seen":"2026-08-14T16:52:21.599652+00:00","updated_at":"2026-08-14T16:52:21.599652+00:00","identifiers":["Kepler-57"],"measurements":[{"parameter":"effective_temperature","value":5187.9,"value_text":null,"unit":"K","err_plus":90.8,"err_minus":90.8,"band":null,"method":null,"source":"nasa-exo","reference":"Leleu et al. 2023","ref_year":2023},{"parameter":"effective_temperature","value":5170.32,"value_text":null,"unit":"K","err_plus":112.85,"err_minus":112.85,"band":null,"method":null,"source":"nasa-exo","reference":"TICv8","ref_year":2019},{"parameter":"effective_temperature","value":5203.0,"value_text":null,"unit":"K","err_plus":104.0,"err_minus":104.0,"band":null,"method":null,"source":"nasa-exo","reference":"Berger et al. 2018","ref_year":2018},{"parameter":"effective_temperature","value":5203.0,"value_text":null,"unit":"K","err_plus":60.0,"err_minus":60.0,"band":null,"method":null,"source":"nasa-exo","reference":"Fulton &amp; Petigura 2018","ref_year":2018},{"parameter":"effective_temperature","value":5390.0,"value_text":null,"unit":"K","err_plus":168.36,"err_minus":152.25,"band":null,"method":null,"source":"nasa-exo","reference":"Morton et al. 2016","ref_year":2016},{"parameter":"effective_temperature","value":5145.0,"value_text":null,"unit":"K","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"Steffen et al. 2013","ref_year":2013},{"parameter":"effective_temperature","value":5324.0,"value_text":null,"unit":"K","err_plus":166.0,"err_minus":140.0,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2012},{"parameter":"effective_temperature","value":5320.0,"value_text":null,"unit":"K","err_plus":159.0,"err_minus":143.0,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2012},{"parameter":"effective_temperature","value":5324.0,"value_text":null,"unit":"K","err_plus":166.0,"err_minus":140.0,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2012},{"parameter":"effective_temperature","value":5294.0,"value_text":null,"unit":"K","err_plus":80.0,"err_minus":80.0,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2012},{"parameter":"effective_temperature","value":5324.0,"value_text":null,"unit":"K","err_plus":166.0,"err_minus":140.0,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2012},{"parameter":"mass","value":0.859,"value_text":null,"unit":"M_sun","err_plus":0.049,"err_minus":0.049,"band":null,"method":null,"source":"nasa-exo","reference":"Leleu et al. 2023","ref_year":2023},{"parameter":"mass","value":0.88,"value_text":null,"unit":"M_sun","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"TICv8","ref_year":2019},{"parameter":"mass","value":0.871,"value_text":null,"unit":"M_sun","err_plus":0.023,"err_minus":0.029,"band":null,"method":null,"source":"nasa-exo","reference":"Fulton &amp; Petigura 2018","ref_year":2018},{"parameter":"mass","value":0.88,"value_text":null,"unit":"M_sun","err_plus":0.052,"err_minus":0.055,"band":null,"method":null,"source":"nasa-exo","reference":"Morton et al. 2016","ref_year":2016},{"parameter":"mass","value":0.88,"value_text":null,"unit":"M_sun","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"Hadden et al. 2014","ref_year":2014},{"parameter":"mass","value":0.83,"value_text":null,"unit":"M_sun","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"Steffen et al. 2013","ref_year":2013},{"parameter":"mass","value":0.884,"value_text":null,"unit":"M_sun","err_plus":0.066,"err_minus":0.098,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2012},{"parameter":"mass","value":0.884,"value_text":null,"unit":"M_sun","err_plus":0.066,"err_minus":0.098,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2012},{"parameter":"mass","value":0.882,"value_text":null,"unit":"M_sun","err_plus":0.061,"err_minus":0.104,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2012},{"parameter":"mass","value":0.843,"value_text":null,"unit":"M_sun","err_plus":0.051,"err_minus":0.051,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2012},{"parameter":"mass","value":0.884,"value_text":null,"unit":"M_sun","err_plus":0.066,"err_minus":0.098,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2012},{"parameter":"radius","value":0.826,"value_text":null,"unit":"R_sun","err_plus":0.019,"err_minus":0.019,"band":null,"method":null,"source":"nasa-exo","reference":"Leleu et al. 2023","ref_year":2023},{"parameter":"radius","value":0.840262,"value_text":null,"unit":"R_sun","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"TICv8","ref_year":2019},{"parameter":"radius","value":0.825,"value_text":null,"unit":"R_sun","err_plus":0.037,"err_minus":0.035,"band":null,"method":null,"source":"nasa-exo","reference":"Berger et al. 2018","ref_year":2018},{"parameter":"radius","value":0.813,"value_text":null,"unit":"R_sun","err_plus":0.024,"err_minus":0.024,"band":null,"method":null,"source":"nasa-exo","reference":"Fulton &amp; Petigura 2018","ref_year":2018},{"parameter":"radius","value":0.84,"value_text":null,"unit":"R_sun","err_plus":0.083,"err_minus":0.057,"band":null,"method":null,"source":"nasa-exo","reference":"Morton et al. 2016","ref_year":2016},{"parameter":"radius","value":0.791,"value_text":null,"unit":"R_sun","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"Hadden et al. 2014","ref_year":2014},{"parameter":"radius","value":0.73,"value_text":null,"unit":"R_sun","err_plus":null,"err_minus":null,"band":null,"method":null,"source":"nasa-exo","reference":"Steffen et al. 2013","ref_year":2013},{"parameter":"radius","value":0.791,"value_text":null,"unit":"R_sun","err_plus":0.179,"err_minus":0.06,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q17 DR24 KOI Table","ref_year":2012},{"parameter":"radius","value":0.74,"value_text":null,"unit":"R_sun","err_plus":0.27,"err_minus":0.27,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q8 KOI Table","ref_year":2012},{"parameter":"radius","value":0.791,"value_text":null,"unit":"R_sun","err_plus":0.179,"err_minus":0.06,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q16 KOI Table","ref_year":2012},{"parameter":"radius","value":0.786,"value_text":null,"unit":"R_sun","err_plus":0.122,"err_minus":0.066,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q17 DR25 KOI Table","ref_year":2012},{"parameter":"radius","value":0.791,"value_text":null,"unit":"R_sun","err_plus":0.179,"err_minus":0.06,"band":null,"method":null,"source":"nasa-exo","reference":"Q1-Q12 KOI Table","ref_year":2012}],"orbit":null,"exoplanet":null,"sources":[]}