UBV photometry test at Crni Vrh


I. Configuration:

Telescope:
C14 - 36cm, Schmidt-Cassegrain with focal reducer & field corrector, total F/D=6.7
Filter:
Standard UBV CCD photometric filters are according to "Glass filters for coated CCDs" proposed by Bessell [Bessell, M.S. (1990), PASP, 102, 1181] which match the standard UBVRI passbands.
Detector:
Wright Inst. CCD camera with EEV CCD02, back illuminated,
conversion 14bit, ADU=4.7, RD noise=7.0e-  QE , pixel size 1.92 arc sec.
Target object:
M67 central part,  sample 60s V image

Date of observation: 2003-02-06, clear night, T=-6°C, H=70%, dark