<https://stargazerslounge.com/topic/310043-has-anyone-seen-this-effect/#comment-3390936>
<http://schema.org/text>
"Scope is an Evostar ED80, I have done this target recently and seen no strange effect so fundamentally something has changed and it is a repeatable failure. In terms of the position in the sky, Rosette and M42 are pretty much the same so I'd expect it to be a common phenomenon (e.g. neighbours' lights) but it isn't. I'll see what Leo throws up ..\n "
<https://stargazerslounge.com/topic/310043-has-anyone-seen-this-effect/?tab=comments#comment-3390936>