Using AA6 to guide a fibre optic echelle spectroscope

Cameras, telescopes, focusers and other hardware
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Forum_2016
Posts: 220
Joined: 08 Dec 2018, 13:30

Using AA6 to guide a fibre optic echelle spectroscope

Post by Forum_2016 »

Just a question.....
Does anyone have experience/ comment on using AA6 to guide a fibre optic feed head on an echelle spectroscope?
Normally this would entail focusing the target star image onto the end of a 50micron circular fibre. Obviously when the star FWHM is smaller than the 50micron circle it will effectively "disappear" into the hole leaving little or no residual "halo" to guide on.
Feedback welcome.
Ken

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