value quality siderealorsynodic author ref method 13.6600 3- Synodic Behrend LCDB Lightcurve 13.6600 3 Synodic Schober 1982A&AS...48...57S Lightcurve 13.6638 2 Sidereal Hanus 2016A&A...586A.108H Model 13.6638 2 Sidereal Martikainen 2021A&A...649A..98M Model 13.6656 2 Sidereal Durech 2023A&A...675A..24D Model 13.6720 3- Synodic Warner 2009MPBu...36....7W Lightcurve 27.3000 0 Synodic Schober 1977Icar...31..175S Lightcurve