Celestron Focus Motor A for SCT and EdgeHD Telescopes

Product Details

• Description
• Specifications
• Included Items
• Recommended Products
• Reviews

• This Focus Motor is designed for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tube assemblies.

  When this focus motor is installed, you will be able to bring celestial objects into sharp, precise focus using your telescope's hand controller or a computer instead of using the focuser knob.

  A focus motor is great for visual observers who want to dial in exact focus (especially those with dexterity issues), and a must-have accessory for astro-imagers. With a motorized focuser installed, an astro-imager no longer needs to be physically near the telescope to focus an image. Combined with computerized control of the mount and camera, the focus motor enables the imager to gather data remotely from a telescope right outdoors or one located in a remote observatory where they have control.

  As an added bonus, port covers protect the ports while they are not in use, and the covers cannot be lost due to a tethered design.

  Compatible Optical Tubes

  The focus motor is compatible with:

  • SCTs from 6-inch to 14-inch in aperture that have been produced since the year 2006.
  • 8-inch Rowe-Ackermann Schmidt Astrograph (RASA).
  • 36 cm RASA.
  • 7-inch Maksutov-Cassegrain.
  • All of the EdgeHD optical tubes (Now including the 9.25-inch).
  • 11-inch RASA - but requires the Focuser Retrofit Kit.   

   It is not compatible with:

  • 5-inch SCTs or older models.
  • For 6-inch Schmidt-Cassegrain telescopes only - the Off-Axis Guider (#93648) cannot be used when the focus motor is installed due to mechanical interferences.

   

  Power Options

  There are three options for powering your Celestron Focus Motor:

  • When using a Celestron computerized mount, you can power and control the focus motor through the mount using the supplied AUX cable. This allows control from the mount’s hand controller (NexStar+ or StarSense) or a computer.
  • If you are not using a Celestron mount, you can power and control the focus motor from a computer USB port. You will need a user-supplied USB A-to-B cable.
  • You may also opt to use an external 12V DC power source which plugs into the motor’s power jack. Compatible Software Celestron offers a free Focuser Utility program for computer control. The Celestron PWI software can also control the focus motor. To use third-party focuser control software, an ASCOM driver is needed.

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• specifications

  AUX Port Power	Celestron computerized mount AUX port/ connecting cable supplied
  CD Jack Power	12V DC 1A/ 5.5mm/ 2.1 mm tip positive plug
  Focuser Shaft	Coupler/ Aluminum clamping sleeve
  Focuser Steps per Revolution	1000 steps
  Free Shipping	Yes
  Gear Diameter	35.2mm
  Gear Ratio	1:1
  Gear Teeth	42
  Gear Type	Spur/ Brass
  Microprocessor	NXP Kinetics serice/ Arm coretex~M4 core
  Motor Speed Rates	8/32/ and 128 degrees per second
  Motor Type	DC servo motor
  USB Port Power	USB3 or USB2 with at lease 900 mA
  Weight	15 ounces (0.42 kg)

• included items

  . 

  • Motor:  DC servo motor.
  • Spur gears:  Brass, 1:1 gear ratio, 35.2 mm diameter, 42 teeth.
  • Focuser shaft coupler:  Aluminum clamping sleeve.
  • Microprocessor:  NXP Kinetis series, Arm Coretex-M4 core.
  • AUX port power:  Powered by Celestron computerized mount AUX port, connecting cable supplied.
  • USB port power:  USB3 or USB2 providing at least 900 mA.
  • DC jack power:  12V DC, 1A, 5.5 mm/ 2.1 mm tip positive plug.