Occultation of UCAC4 447-137290 by (168) Sibylla on 2025-12-13 Green O+: Gonzalo Arraras Optics: M200 | Method: CCD | Duration: 10.60 -1.98,42.76,0 Green O+: Michael OConnell Optics: M350 | Method: VID | Duration: 10.70 -6.99,42.22,0