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Duh. I forgot. Is a dew heater usually necessary...

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#1 Cotts

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Posted 13 November 2019 - 12:39 PM

...at the Winter Star Party?

 

It's been 2 years since I've attended...

 

Dave


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#2 Napp

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Posted 13 November 2019 - 01:08 PM

What scope?  SCT’s and refractors are a definite yes.  A DOB may only require an occasional touch of a 12 volt hair dryer.  But it’s Florida, it can sometimes be worse.


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#3 Cotts

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Posted 13 November 2019 - 03:26 PM

TEC 160 refractor.....  So mostly yes, then.....

 

Thanks

 

Dave



#4 Napp

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Posted 13 November 2019 - 04:18 PM

In Florida the dew point is usually fairly high and of course the humidity is always high so you really have to prepare for heavy dew on almost any night - especially after midnight.


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#5 Joe F Gafford

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Posted 14 November 2019 - 05:01 PM

Ditto on that. 2 trips to WSP and 2 trips to Chiefland. My secondary and focuser to my 18" is homemade using a resistor string. Lower power than the strip heaters, it still clears a foggy secondary in 5 minutes using the 12 volt homemade variable heater. The 10" in the Sonotube, not much of a problem. I got piddled on in my dome when I shot Eta Carinae and the Jewel box there from the condensation. The focuser girdle hasn't been used since I've been using a CCD camera. The heat produced by the CCD camera keeps the field flattener cleared. The 60 mm refractor has a girdle for the primary. I used that as a guide scope when I shot some wide southern stuff with my medium format camera at the 2002 WSP using the ST-4 autoguider. 

 

Joe



#6 DeanS

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Posted 15 November 2019 - 10:50 AM

Usually at WSP there is enough breeze to keep things dry.  But when it calms down things can get wet pretty fast.  Take a dew strap for sure.




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