Although I use Kendrick dew heaters and some homemade ones as well, I dont seem to have a problem with dew on my mirror. I have observed during some really soaking nights and my mirror stays dry. I have a fan on the back that I run to cool the mirror down for about 30 minutes, but after that the only dew I get is on the Rigel quik finder and my 8X50 finder. My EP's tend to get a little wet, so I have a reserve Kendrick heater to wrap around my EP's in case of extra dew, but I keep them in an EP case with the lid closed when not using them. I think the most annoying dew is on my commercial cats perch chair when I go and sit on it if I leave it for very long while charting some objects.
----- Original Message -----
From: Nick Martin
Sent: Tuesday, June 05, 2001 3:08 AM
To: netastrocatalog-announce@jovian.com
Subject: Re: (IAAC) Condensation on the primary was Creating a detailed deep-sky log... (LONG)
At 12:04 AM 6/4/01 +0100, you wrote:
>Me too!!!! My scope, books, seat, and the kitchen sink too!! soaked!
>Kim Gowney.
>
I would be very interested to hear how people deal with the condensation
that forms on the primary mirror when the telescope is brought in after an
observing session ( those who, like me, lack an outside observatory
building). I get the impression that the larger drops leave a faint deposit
or discolouration on the mirror surface.
Nick
Nick Martin, Bonnyton House, By Ayr, Ayrshire KA6 7EW ,Scotland, UK.
Latitude 55 24'56" Longitude 4 26' 00".
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