on Aug 23, 2015
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THE 360 DEGREE SCALE IS SET ON A 150mm CIRCLE FIXED TO THE TELESCOPE MOVEMENT AND THE TABLE IS ATTACHED TO THE DOUBLE ENDED VERNIERWHICH READS TO ONE MINUTE OF ARC
BOTH TELESCOPE AND TABLE ROTATIONS HAVE FINE ADJUSTMENT SCREWS AND RELEASE OF A CLAMPING SCREW ENABLES ADJUSTMENT OF BOTH MOVEMENTS TO BE MADE BY HAND
THE COLLIMATOR IS MOUNTED ON A FIXED PILLAR AND FITTED WITH 178mm FOCUS ACHROMATIC OBJECTIVE, 25mm CLEAR APERTURE
ALSO FITTED IS A UNILATERALLY ADJUSTABLE SLIT, 7mm LONG
THE TELESCOPE IS MOUNTED ON A MOVEABLE PILLAR AND FITTED WITH 178mm FOCUS ACHROMATIC OBJECTIVE, 25mm CLEAR APERTURE
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