value quality siderealorsynodic author ref method 13.3500 2 Synodic Behrend LCDB Lightcurve 13.3538 2 Synodic Behrend LCDB Lightcurve 13.3538 2 Sidereal Durech 2016A&A...587A..48D Model 13.3539 2 Sidereal Durech 2023A&A...675A..24D Model 13.3560 2 Synodic Szekely 2005P&SS...53..925S Lightcurve