WEBT observation at the Michael Adrian Observatory of the Astronomie Stiftung Trebur are done by Johannes M. Ohlert (jomo@monet.fh-friedberg.de).
Telescope parameters: Observatory IAU code 239; Latitude: 49.9254 north; Longitude: 8.4114 east; rho sin phi’ = 0.64506; rho cos phi’ = +0.76159 Alt=103 m
Optical configuration: Cassegrain D=1.2m, f/D=8
CCD camera: Roper Scientific (Photometrics LTd.) EEV 1340EB 1340×1300 pixels, 20×20 um width, FOV = 10’x10′
Filters: R-Johnson, (also possible UBVI)