Thank you, Evgeny, for your question about the Hubble Space Telescope. You may be right, but how can this defect of the primary mirror being over-compressed be corrected in this optical system?
Remove the tube from the mount. Try gently moving the mirror; it should rotate freely in its clips but not be loose, to prevent collimation from shifting when repositioning the tube. If necessary, carefully adjust the tension.
I see streaks from bright stars pointing in different directions in the photo—that shouldn't happen. The first thing that comes to mind is exactly over-tightening of the guide scope. The telescope isn't mine, so I can't check it myself.
Comments
Comments are available only to registered users. Register or log in to leave a comment.