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OMG Dew or something else?

SteveBz

By SteveBz
in Imaging - Deep Sky

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SteveBz

SteveBz

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3 minutes ago, discardedastro said:

What I would like - given I have a light cover on the back of the primary that provides a pretty good seal - would be to mount a big pile of silica gel in the tube when stored so it's at least starting out dry. Storing outside, it doesn't get a good continuous dry period very often, and with foggy nights the air trapped in the tube after sessions is laden with moisture...

Ditto.  I've just put de-humidifyer in to get back to a good starting position! 

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Davey-T
Davey-T

Have you tried rotating the camera to see if it moves round ? Dave

Davey-T
Davey-T

Doesn't look like dew, maybe high level cloud not visible to the naked eye or light pollution. Dave

Tommohawk
Tommohawk

Maybe light leak around primary - I guess you've already ruled that out. I got caught out once when I repositioned my laptop and screen light leaked into primary end of tube. Edit -  Hmmmm. would

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