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Celestron

Focus Motor for SCT and EdgeHD (94155)


  • 19995

This item is out of stock but you can place an order now and we’ll ship when it becomes available.


Description

The Focus Motor for SCT & EdgeHD provides electronic focusing for Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes. With the focus motor installed, you can 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 astroimagers. With a motorized focuser installed, an astroimager 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 backyard observatory, or even a telescope located hundreds of miles away. As an added bonus, port covers protect the ports while not in use, and the covers cannot be lost due to the tethered design.

Compatible Optical Tubes

Aperture Celestron Telescope Design  Models Compatible with #94155 Focus Motor? Notes
5" Schmidt-Cassegrain All No
6" Schmidt-Cassegrain All Yes Not compatible with #93648 OAG, or #93519 diagonal
7" Maksutov-Cassegrain All Yes
8" Schmidt-Cassegrain Built before 2006 No
8" Schmidt-Cassegrain Built 2006 or later Yes
8" EdgeHD All Yes
8" Rowe-Ackermann Schmidt Astrograph All Yes
9.25" Schmidt-Cassegrain Built before 2006 No
9.25" Schmidt-Cassegrain Built 2006 or later Yes
9.25" EdgeHD All No Currently not compatible due to mechanical interferences
11" Schmidt-Cassegrain Built before 2006 No
11" Schmidt-Cassegrain Built 2006 or later Yes
11" EdgeHD All Yes
11" Rowe-Ackermann Schmidt Astrograph All Yes Requires #94255 Focuser Retrofit Kit
14" Schmidt-Cassegrain Built before 2006 No
14" Schmidt-Cassegrain Built 2006 or later Yes
14" EdgeHD All Yes
36cm Rowe-Ackermann Schmidt Astrograph All Yes

 

Power Options

There are three options for powering your Celestron Focus Motor:

  1. 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.
  2. 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.
  3. 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.

Specifications

Motor: DC servo motor
Spur gears Brass, 1:1 gear ratio, 38mm diameter, 45 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 900mA
DC jack power 12V DC, 1A, 5.5mm/2.1mm tip positive plug
Compatibility All SCTs produced after 2006 except 5" SCT, all Edge HD, RASA 8", RASA 36cm, 7" Mak-Cass
Speed rates 8°/sec , 32°/sec , 128°/sec
California Residents View Proposition 65 Warning

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