ORION TELESCOPES & BINOCULARS AstroTrack 7812 Instruction Manual

Dc motor drive for eq-1 mount

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instruction Manual

orion astrotrack

Dc Motor Drive for EQ-1 Mount

The AstroTrack DC Motor Drive provides precise electronic, hands-free tracking of celestial

objects as they move across the sky. Designed for use with the Orion EQ-1 and Min-EQ

equatorial mounts, the AstroTrack counteracts the rotation of the Earth on its axis, making

objects appear to stand still in the telescope's field of view. You won't have to reposition the

telescope to re-center an object in the eyepiece as the object moves across the sky – a

welcome convenience!

The AstroTrack has variable-speed tracking control, allowing adjustment to the exact side-

real tracking rate as well as to speeds slightly slower or faster than sidereal. This ensures

accurate tracking of both solar system and deep-sky objects, and allows for correction of

any inherent deviation in the motor from the sidereal rate.

The AstroTrack provides sufficiently accurate tracking for piggyback and planetary (eye-

piece projection) astrophotography. It is not recommended for prime focus, long-exposure

photography.

Providing Exceptional Consumer Optical Products Since 1975

without the prior written consent of Orion Telescopes & Binoculars.

#7812

™

Customer Support:

www.OrionTelescopes.com/contactus

Corporate Offices:

89 Hangar Way, Watsonville CA 95076 - USA

IN 154 Rev. D 11/14

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Page 1 instruction Manual orion astrotrack ™ Dc Motor Drive for EQ-1 Mount #7812 The AstroTrack DC Motor Drive provides precise electronic, hands-free tracking of celestial objects as they move across the sky. Designed for use with the Orion EQ-1 and Min-EQ equatorial mounts, the AstroTrack counteracts the rotation of the Earth on its axis, making objects appear to stand still in the telescope’s field of view.
Page 2 assembly Power Power light switch installing the Battery The AstroTrack is powered by a single 9-volt alkaline bat- tery (not included). It should be installed before attaching the AstroTrack to the equatorial mount. Adjustable Directional Make sure the power switch is in the OFF position. Unscrew speed switch control...
Page 3 Thumbscrew on R.A. slow- motion control cable Thumbscrew on drive coupling Figure 4: When the thumbscrews on the R.A. slow-motion control cable and the drive coupler are rotationally aligned, Figure 5: The AstroTrack installed on the EQ-1 mount. the coupler’s thumbscrew should seat into the groove on the R.A.
Page 4 note regarding Motor interference with Is the telescope properly balanced? The motor provides the Mount: only limited torque, so if the telescope is not balanced It is not possible to point the telescope at all positions in the on both the right ascension and declination axes, the sky with the AstroTrack installed.