The telescope is rotated about two axes, HA (Hour Angle) and DEC (Declination). A Bipolar stepper motor is used for the HA axis and a unipolar stepper used for the DEC axis. Both the motors have been supported with a good, high torque supportable gear system which gives the telescope an overall resolution of 1.8 arcsec in DEC and 10.3 arcsec in HA.
After the construction of the gear system, the gear ratios of the DEC and HA axes are 2520 and 3600 respectively.
The telescope is mounted in an equatorial mount. Thus the telescope has been mounted with an inclination of 6° 40’ with the vertical axis and the initial position of the telescope has been calibrated to point the North Pole. This eliminates the need for both axes to be rotated to track the viewing object continuously. Our system has been coupled with a clock drive which allows us to rotate the telescope compensating the earth’s rotation for continuous tracking. Also equatorial mount eliminates the rotation of the objects against their focal point and thus enables clear and smooth imaging
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| HA Motor and gear System |
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| Declination Motor and part of the gear system |
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