value unc_up unc_lo author ref method 8.76 nan nan Durech 2016A&A...587A..48D Model 8.76 nan nan Durech 2023A&A...675A..24D Model 8.76 nan nan Behrend LCDB Lightcurve 8.77 nan nan Waszczak 2015AJ....150...75W Lightcurve 8.79 nan nan Waszczak 2015AJ....150...75W Lightcurve