Photometric performance of the CCD detector at the Kavalur 102 cm reflector

Abstract

A CCD detector system built around the Thomson TH 7882 chip has recently been acquired for use at the 102 em telescope at the Vainu Bappu Observatory (VBO). The chip has a coating for enhanced ultraviolet sensitivity, making it a viable system for two-dimensional imaging in the wavelength range of ~ 0.3-1 μm. Observations of stars in open cluster M67 standard field were carried out on two nights with U, B, V, R filters to evaluate the performance of the system. The use of this chip for standard astronomical photometry, to our knowledge, has not been reported earlier.