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Political Cynic
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Observatory Construction



[B] Against ALL enemies, foreign and DOMESTIC


 
Posts: 53165 | Location: Tucson Arizona | Registered: January 16, 2002Reply With QuoteReport This Post
Just having a good time
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Very nice indeed. Well done.



" I didn't fail the test,I just found 100 ways to do it wrong." - Benjamin Franklin
 
Posts: 1489 | Location: N. C. | Registered: November 22, 2006Reply With QuoteReport This Post
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That's a unique construction project. What will the four blocks in 9883 be used for?
 
Posts: 7308 | Registered: January 10, 2009Reply With QuoteReport This Post
Glorious SPAM!
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Wow. Sooo....when you find the asteroid that will hit the planet, causing us to send Robert Duvall into space to stop it, will they name it after you? Smile

Looking forward to seeing your pics once the telescope gets installed.
 
Posts: 10635 | Registered: June 13, 2003Reply With QuoteReport This Post
Political Cynic
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the four blocks

well, the building is supported on 8 piers but the telescope has its own isolated pier that you can see in 9861 and 9865 (the slump blocks were removed before the floor was placed (9869).

the floor has a 24" X 24" hole in the center to allow the pier to come up into the hut, and even using 4X4's the floor had a wee bit of spring in it when standing near the center

the four blocks were placed under this cut out to give the floor a bit more stability when walking around inside



[B] Against ALL enemies, foreign and DOMESTIC


 
Posts: 53165 | Location: Tucson Arizona | Registered: January 16, 2002Reply With QuoteReport This Post
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^^^^
That sounds like a nifty fix. Looking good!
 
Posts: 7308 | Registered: January 10, 2009Reply With QuoteReport This Post
Political Cynic
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thanks

the contractor is actually coming by this afternoon to finish painting the interior flat black

I should be able to start moving a few things into the building tonight - and start thinking about the pier - I am going to build a test pier out of PVC pipe first so I can adjust the height to what I need before I go and pay for one out of steel. PVC is cheap and easy to work with and will be a good prototype



[B] Against ALL enemies, foreign and DOMESTIC


 
Posts: 53165 | Location: Tucson Arizona | Registered: January 16, 2002Reply With QuoteReport This Post
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Do you have to do anything to keep the temperatures stable, day to night, to protect the telescope?


Jim
 
Posts: 1349 | Location: Southern Black Hills | Registered: September 14, 2012Reply With QuoteReport This Post
Political Cynic
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nothing specific - it is going to be at atmospheric temp all the time. I am not cooling it because that leads to huge thermal imbalances

also, its un-insulated for the same reason, and the the dome reflects a lot of heat (its actually cooler inside than out)



[B] Against ALL enemies, foreign and DOMESTIC


 
Posts: 53165 | Location: Tucson Arizona | Registered: January 16, 2002Reply With QuoteReport This Post
Little ray
of sunshine
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That is a nice thing to have. And the dark skies.




The fish is mute, expressionless. The fish doesn't think because the fish knows everything.
 
Posts: 53121 | Location: Texas | Registered: February 10, 2004Reply With QuoteReport This Post
Nature is full of
magnificent creatures
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This looks like a dream project, well thought out and built with a lot of attention to detail.

How large a piece of property is this on? How is the light pollution from surrounding properties?
 
Posts: 6273 | Registered: March 24, 2008Reply With QuoteReport This Post
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quote:
Originally posted by nhtagmember:
nothing specific - it is going to be at atmospheric temp all the time. I am not cooling it because that leads to huge thermal imbalances

also, its un-insulated for the same reason, and the the dome reflects a lot of heat (its actually cooler inside than out)


Thanks! The only observing I have been around is getting to a site by car, unpacking the gear, setting it up and waiting for dark. Or attending several star parties where people had some pretty impressive equipment set up. Though I did learn about putting a dew shield around the lenses to minimize dew formation, but that was in much more humid climates many years ago. Should have thought about the thermal imbalances you mentioned as some of the other people wanted their equipment to stabilize.
Nice build !!


Jim
 
Posts: 1349 | Location: Southern Black Hills | Registered: September 14, 2012Reply With QuoteReport This Post
Political Cynic
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I am already researching some entry level CCD systems

I have a ZWO system that I picked up a few years ago but I have never been able to get it to work properly - bad drivers, poor cables, lots of hot cells in the chip

currently reviewing the Revolution 2 which is supposed to be pretty good and easy to operate



[B] Against ALL enemies, foreign and DOMESTIC


 
Posts: 53165 | Location: Tucson Arizona | Registered: January 16, 2002Reply With QuoteReport This Post
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