Occultation of TYC 1866-01790-1 by (295) Theresia on 2017-11-20 Green O+: Jesus Delgado Optics: M235 | Method: CCD | Duration: 3.19 -6.03,37.40,0 Red O-: Stefano Sposetti Optics: M280 | Method: VID | Duration: 9.02,46.23,0