... The mount is also adjustable so you can orient the axis of rotation to make it parallel with the Earth's axis of rotation (see the section on Polar Alignment). ... Locate the opening in the equatorial mount on the DEC axis. ... To mount the telescope tube: 1. ... ADJUSTING THE MOUNT FOR POLAR ALIGNMENT In order for the clock drive to track accurately, the telescope's axis of rotation must be parallel to the Earth's axis of rotation, a process known as polar alignment. ... R.A. & DEC axis ! ...

... Beam from Telescope M2, at edge of FOV Window З Baffle Cryostat Telescope M1 M1 Cell region Lens Barrel G10 truss Cold Bench Sensor Mount flange Cable wrap region Warm electronics FPA Filter wheel `Services bundle' Figure 1: General view of the VISTA infrared camera layout The specification on the net imaging performance of the system is for point spread function of width compatible with the detectors pixel size (0.34ДД) over this wide FOV and over wavelength range 1.0 to 2.35um. ...

... 322, L29 ? L36 (2001) The 2dF QSO Redshift Survey ? V. The 10k catalogue S. M. Croom,1w R. J. Smith,2 B. J. Boyle,1 T. Shanks,3 N. S. Loaring,4 L. Miller4 and I. J. Lewis1 1 2 3 4 Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD Department of Physics, University of Durham, South Road, Durham DH1 3LE Department of Physics, Oxford University, 1 Keble Road, Oxford OX1 3RH Accepted 2001 March 7....