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Pier Adapter for Celestron CGX (150mm Pier Tube)
The iOptron 8039A-CGX Pier Adapter provides the critical mechanical link between a Celestron CGX mount and a permanent pier with a 150mm diameter, creating an ultra-stable imaging platform free from the vibrations and flexure of a field tripod.
Permanent Pier Stability for Your Celestron CGX Mount
For serious astrophotography, a permanent pier is the ultimate upgrade in stability. This adapter allows you to securely attach your Celestron CGX mount to a pier, eliminating the most common sources of tracking errors and lost frames, such as tripod leg flexure or accidental bumps in the dark. Once installed, your setup becomes a rock-solid instrument, ready for precise polar alignment that only needs to be done once.
Precision Fit for 150mm Diameter Pier Tubes
This adapter is engineered specifically to mate with pier tubes that have an outer diameter of 150mm, a common size for both commercial and custom-built observatory piers. A precise, purpose-built fit ensures the mount is perfectly centered and rigidly coupled to the pier, preventing any slippage or alignment shift during long imaging sessions. This removes the guesswork and potential instability of a DIY solution.
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What is the purpose of the Pier Adapter for CGX (150mm Pier Tube)?
This adapter's primary function is to allow you to mount a Celestron CGX equatorial mount onto a permanent or semi-permanent pier with a 150mm diameter. It replaces the standard field tripod, offering significantly improved stability for astrophotography and observation.
How does using this Pier Adapter improve my astrophotography with a CGX?
A pier provides a much more rigid and vibration-resistant platform than a tripod. By using this adapter, you reduce shake caused by wind and ground vibrations. This leads to sharper stars, allows for longer sub-exposures, and increases the number of usable frames you capture during a session.
I'm building a backyard observatory with a custom 150mm steel pier. Is this the iOptron part I need for my CGX?
Yes, this is the correct adapter for your project. It is designed to connect the base of the Celestron CGX mount head directly to the top of a pier tube with a 150mm outer diameter, ensuring a secure and stable connection.
Will this adapter fit a Celestron CGX-L mount?
iOptron names only the Celestron CGX for this adapter and does not state whether it fits the CGX-L. Please contact us before ordering it for a CGX-L.
Does the CGX Pier Adapter come with mounting hardware?
iOptron does not publish a package list for this adapter, so please check with us about included bolts before you plan your installation.
What is the main disadvantage of a pier setup for my CGX mount?
The primary trade-off is portability. A pier is a fixed installation. This adapter is designed for a permanent or semi-permanent observatory setup and eliminates the ability to easily transport your telescope to different dark-sky locations, which is the main advantage of the standard tripod.
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| Model |
8039A-CGX |
| Mount Compatibility |
Celestron CGX Equatorial Mount |
| Pier Compatibility |
Pier tubes with 150mm outer diameter |
| Application |
Permanent or semi-permanent pier installation |
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iOptron Warranty Policy
