Home › Forums › Spectroscopy › Finding/Guiding with a Lodestar › Guide image
2 November 2016 at 8:20 pm #577579
That is a decent guide image Tony. I find that for good results the target star has to be bang on the slit. This is not just to get the maximum number of photons through the slit, but also to avoid sampling parts of the star’s image which may have been colour dispersed by the atmosphere.