The 40-inch Carl-Zeiss Telescope
The 40-inch telescope at VBO was installed in 1972. The telescope has a Ritchey-Chretien F/13 optical configuration, with a primary mirror of 1.02m diameter and with a plate scale of 15.5 arcsec/mm. The telescope is attached with a stellar optical polarimeter and a medium resolution UAGS spectrograph.
Backend Instruments
The 40-inch Telescope is equipped with a medium resolution spectrograph (UAGS) at the cassegrain focus
| Plate Scale | 15.9"/mm |
| Slit Width | 130 microns (2" in sky, 2 pixel resolution) |
| CCD | Pixis 1340 x 400 pixels 20 x 20 micron pixels Gain: 1.22 e/ADU Read noise: 4.2 e |
| Grating |
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A spectro-polarimeter is also available at the cassegrain focus. Contact Prof. S. Muneer (muneer_s@iiap.res.in) for more information.