Sunday, May 20, 2012

verified 9.25" collimation

Another thing Manuel G wanted my help with was the collimation of his Celestron 9.25" SCT. He asked me if I had already done it. No... Oh. Then it clicked, for me. The reason he had asked me to take the SCT up on Friday was that he wanted me to immediately align it. I explained I couldn't do the collimation on a star until it was mounted. So we retrieved it from the GBO, rigged it up, and checked it on a star overhead. I thought the collimation very good. No change required. And then, to be safe, perhaps, I thought I'd get another opinion. We asked Phil. He thought it very good. No action required. OK. He was good to go.

No comments: