A counterweight is an essential mount accessory that is there to the balance weight of an optical tube (OTA) and any accessories mounted on the other side of the Right Accession (RA Axis). If accessories are added to your telescope setup (i.e. camera, guider, etc), or use a different (heavier) OTA, you may need to add additional counterweights to off-set the weight.
If the balance is off on one-side or the other, it can do damage to your OTA and setup, the motor gear, leading to issues with tracking accuracy. You can add additional counterweights to improve the responsiveness to the system by reducing the mass inertia, though you need to make sure you space out the counterweights along the shaft to reduce damage to your setup and that it is cost-effective and worth it for your telescope setup.
This counterweight comes with a sturdy knurled knob locks to safely hold in place on the counterweight shaft.
This 5kg/11lb counterweight is designed to fit 19mm counterweight shafts used on the Celestron CG-5, Advanced VX, CGEM, CGEM II, CGX Mount.
Below are the counterweights that go with each one of our recent Celestron mounts.
|Counterweight Model||Weight (pounds)||Shaft-hole size (approx)||Mount|
|94203||11 lbs||0.75″||Advanced VX/CG-5/CGEM/CGEM II/CGX|
|94186||11.8 lbs.||0.75″||Advanced VX/CG-5/CGEM/CGEM II/CGX|
|94286||12 lbs.||0.75″||Advanced VX/CG-5/CGEM/CGEM II/CGX|
|94189||17 lbs.||0.75″||Advanced VX/CG-5/CGEM/CGEM II/CGX|
|94187||22 lbs||1.25″||CGX-L/CGE Pro/ CGEM DX|
|Advanced VX||94186, 94189, 94203, 94286|
|Advanced CG-5||94186, 94189, 94203, 94286|
|CGEM||94186, 94189, 94203, 94286|
|CGEM II||94186, 94189, 94203, 94286|
|CGX||94186, 94189, 94203, 94286|