Pegasus NYX-101 High-Payload Harmonic Mount

The Pegasus NYX-101 is a compact, high-payload harmonic drive mount designed for serious visual observers and astrophotographers who want precision tracking, low weight and minimal setup time. With strain-wave gears on both RA and DEC, the NYX-101 delivers smooth, backlash-free operation and can carry up to 20kg without counterweights.

Key Mount Features

• Harmonic drive on both axes – strain wave gears on RA and DEC provide high torque, smooth motion and backlash-free tracking.
• High payload capacity – supports up to 20kg without counterweights (counterweight shaft can be added for heavier payloads).
• Lightweight CNC-machined body – aluminium alloy AL6061 construction keeps the mount head around 6.4kg, ideal for remote and portable setups.
• Equatorial or Alt-Az mode – operate as a German Equatorial mount for imaging, or switch to Alt-Az for relaxed visual observing.
• Universal saddle – low-profile, rigid saddle accepts both Vixen and Losmandy 3" dovetail bars.
• Built-in Wi-Fi and USB control – wireless and USB2 connectivity out of the box; both interfaces can be used simultaneously.
• Power-off safety brake – electronic brake on RA locks the axis in the event of a planned or unplanned power interruption.
• ST-4 autoguiding port – compatible with standard ST-4 guide cameras and the dedicated NYX hand controller.
• Electronic leveller – built-in tilt and pitch sensor simplifies leveling in Alt-Az and setting latitude in EQ mode.
• Refraction compensation – integrated barometric/pressure sensor enables the mount to correct for atmospheric refraction.
• Auto home & safety limits – encoders provide automatic home position and RA safety limits to prevent collisions and cable snagging.

Power & Connectivity

The NYX-101 is designed around a simple, robust power and control system to make integration into modern rigs as easy as possible:

• 12V DC operation – runs from a standard 12V supply or field battery.
• Low power consumption – typically under ~0.6A while tracking and up to ~2A during slews (mount only), making it ideal for portable power stations.
• Reverse polarity protection – internal protection safeguards the mount if the supply is accidentally reversed.
• ASCOM & INDI support – fully compatible with ASCOM 7, ASCOM Alpaca and INDI frameworks.
• LX200 & SkySafari compatibility – supports LX200 protocol, allowing control from many PC and mobile planetarium apps.

ASCOM Alpaca Native Support

The NYX-101 includes an integrated web server with native ASCOM Alpaca support. Modern imaging applications (e.g. N.I.N.A.) can discover the mount automatically over the network and connect without traditional driver installation, simplifying remote setups and observatories.

Unity Platform Control

Pegasus’ Unity Platform provides a single, modern interface for configuring and controlling the NYX-101. Via USB or Wi-Fi, you can:

• Set tracking rates, slewing limits and home position.
• Switch between Equatorial and Alt-Az modes.
• Monitor power, sensor data and mount status.
• Update firmware to access new features and improvements.

Real-World Performance

In practical use, the NYX-101 has been demonstrated carrying a wide range of telescopes, from compact refractors to large SCTs and Newtonians, delivering tight guiding and smooth tracking suitable for long-exposure imaging.

Technical Specifications (Mount Head)

Note: This page describes the NYX-101 mount head only. Tripods, pier extensions, powerboxes and other accessories shown in some images are optional extras and not included unless specifically stated in the product bundle.