Celestron CGEM 17 lb Counterweight
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Celestron Counterweights – 19mm Shaft (0.75")
Maintain Precise Balance for Accurate Mount Tracking
Whether you're upgrading your telescope setup or replacing a lost component, Celestron counterweights are essential for keeping your mount balanced—especially when you're adding accessories like cameras, guide scopes, or filter wheels. Designed to fit 19mm (0.75") counterweight shafts, these weights ensure your mount’s right ascension (RA) axis remains properly balanced for smooth and precise tracking.
Why Proper Balance Matters
An unbalanced setup can lead to:
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Strain on the mount’s motors and drive gears
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Reduced tracking accuracy
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Excessive wear on components over time
By distributing counterweights along the shaft, you minimise mass inertia and improve system responsiveness—an especially important factor for long-exposure astrophotography.
Sturdy and Reliable Design
Each counterweight is precision-machined and features a knurled locking knob that secures firmly onto the shaft, holding its position even during extended observing or imaging sessions.
Counterweight Options & Compatibility
| Model | Weight | Shaft Size | Compatible Mounts |
|---|---|---|---|
| 94203 | 11 lbs | 0.75" (19 mm) | Advanced VX, CG-5, CGEM, CGEM II, CGX |
| 94186 | 11.8 lbs | 0.75" (19 mm) | Advanced VX, CG-5, CGEM, CGEM II, CGX |
| 94286 | 12 lbs | 0.75" (19 mm) | Advanced VX, CG-5, CGEM, CGEM II, CGX |
| 94189 | 17 lbs | 0.75" (19 mm) | Advanced VX, CG-5, CGEM, CGEM II, CGX |
Need a heavier weight or larger shaft size? Check out Celestron 22 lb Counterweights for 1.25" (32 mm) shafts.
Mount Compatibility Guide
| Mount Model | Recommended Counterweights |
|---|---|
| Advanced VX | 94186, 94189, 94203, 94286 |
| Advanced CG-5 | 94186, 94189, 94203, 94286 |
| CGEM / CGEM II | 94186, 94189, 94203, 94286 |
| CGX | 94186, 94189, 94203, 94286 |
For larger mounts:
| Mount | Counterweight Model |
|---|---|
| CGX-L | 94187 (22 lbs, 1.25") |
| CGE Pro | 94187 |
| CGEM DX | 94187 |
Quick Tip
If you're adding new gear to your telescope (like a camera or guidescope), it's good practice to rebalance your mount. Consider using multiple smaller weights spaced along the shaft for better weight distribution and less mechanical stress.
Achieve smoother slewing, more accurate tracking, and better long-term performance from your mount with a properly matched Celestron counterweight—a must-have for any serious observer or astroimager.
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