General Astronomy Topics

Hello,

I took my 8" Dob on a trip to a camp in Mississippi a couple months ago and I think it needs a tuneup. I got it used and thankfully it already has Bob's knobs on it.

I will not be present in the February meeting due to work scheduling conflicts but if anyone has some pointers I'd appreciate it very much.

o7

Eric G

Hi Eric,

Many sources of collimation on the internet. Most methods are to defocus on a Star and adjust the knobs very gradually in or out until the black area is in the center. If you need assistance, what area are you in? I can see if anyone close by can help you out.

Thanks,

Bill J.