Vixen Encoder for AXJ Mount (78225)

The Vixen Encoder for AXJ Mount is a high-precision accessory designed to make your AXJ mount more flexible and accurate. With these encoders, you can manually move your telescope to different celestial objects without losing position data, even when using the GoTo system. This means you can release the clamping levers and reposition the telescope by hand, then continue using GoTo functions without recalibration. The encoders also deliver extremely high tracking accuracy, with a periodic error of less than 0.5 arcseconds, making them ideal for long-exposure astrophotography without the need for autoguiding.

The encoders are installed inside the mount, so they do not change the external dimensions of the AXJ mount or require a larger storage case. This upgrade is perfect for astrophotographers and advanced observers who want both manual flexibility and precise automated tracking.

Key Features

• RA Encoder Sensor: Reflective laser sensor

• Two refractive rotation disks made of glass

• Resolving power: 0.1 arcseconds

• Periodic error: Less than 0.5 arcseconds rms (typical)

• Power supply: From AXJ mount DC5V 0.2A

• Electrical terminal: D-SUB15PIN female (connects to AXJ)

• Dimensions: 99.5 mm diameter x 27 mm thickness

• Weight: 350 g

• DC Encoder Sensor: Reflective optical sensor

• Resolving power: 0.2 arcseconds

• Power supply: From AXJ mount DC5V 0.1A

• Electrical terminal: D-SUB9PIN female (connects to AXJ)

Scope of Delivery

• AXJ Encoder (2 pieces)

• Mounting tool

• Mounting screws

Specifications

• Number included: 2

• Operating temperature: 0 – 40°C

• Diameter: 99.5 mm

• Height: 25 mm

• Weight: 320 g

• Outer material: Aluminium

This encoder set is an excellent enhancement for anyone seeking both manual control and high-precision tracking on the Vixen AXJ mount.