High humidity, will it affact astroimaging quality??

[DavidNg]

Hi,

My weather sensor last night recorded 94%.

Will high humidity having a negative effect on image quality? and how high is high?

Thanks
David

[multiweb]

Moist cold air will likely drip on your equipment and dew is an issue even with dew heaters. Also high humidity in the air will create a haze fog like which will affect transparency and you might even pick up light pollution more easily depending on your location. All in one it can be a nuisance. Nothing beats a cold crisp winter night IMHO. Every time I went to Wiruna and the weather was wet it was a waste of time. The skies were dark and clear but the transparency was an issue and the end results not worth it. Bloated stars, noise etc...

[asimov]

You haven't explained what TYPE of imaging..;)

As Marc said about DSO imaging though:thumbsup:

In my case, I want high humidity! Bring it on! I do planets & that's when I get my best results, when everything is dripping! Love it.

[leon]

Have to agree with Marc, the colder the night the better, I used to love it when the frost settled during my imaging sessions.

Leon

[Lee]

Why is that?? Intuitively I would think if seeing is rubbish for DSO, it would affect planetary similarly??

[Paul Haese]

Current humidity level in the observatory is 87% and imaging. That is a good night. Most nights here I get up to the mid 90's and it has not affect the image quality.

[DavidNg]

Thanks everyone for your advice. One less thing to worry about.

David