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Equipment Discussions >> Observatories

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Midnight Dan
Postmaster
*****

Reged: 01/23/08

Loc: Hilton, NY, Yellow Zone (Bortl...
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #5903926 - 06/05/13 01:24 PM

Quote:

The neighborhood has a 150 lb/ft snow load requirement




150 pound per square foot ??? Is that for real?

I live near Rochester, NY ... just across Lake Ontario from Canada ... and our snow load here is 40 pounds per square foot. You're in Arizona and it's 150? Doesn't make any sense. What gives?

-Dan

*** EDIT ***
Ah ... never mind. I just noticed the observatory is in Idaho. Still, 150 pounds per square foot ... wow!

-Dan

Edited by Midnight Dan (06/05/13 01:26 PM)


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dmdouglass
professor emeritus


Reged: 12/23/07

Loc: Tempe, AZ
Re: TamarackSkies Observatory build pics new [Re: Midnight Dan]
      #5904022 - 06/05/13 02:03 PM

Hey Midnight Dan...

I was thinking the same thing.
Snowload in Scottsdale ?? I was about to post the question, but saw the signature line....

Since I live in Tempe (down the street from Scottsdale), I was just a little concerned !!

James in Arizona....
Words are not adequate. Simply Beautiful !!!


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woodscavenger
sage


Reged: 08/20/13

Loc: Boise, ID
Re: TamarackSkies Observatory build pics new [Re: dmdouglass]
      #6127419 - 10/09/13 04:48 PM

I saw Tamarack and was wondering if you were my neighbor. Can't wait to see the finished product.

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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: woodscavenger]
      #6133078 - 10/12/13 01:14 PM

Quote:

I saw Tamarack and was wondering if you were my neighbor. Can't wait to see the finished product.




If you are in Boise then I am 100 miles North in the Tamarack Resort. I'm expecting the dome to be delivered soon. It will be the last component of the exterior. (Still working to complete the interior of the home. That will still take a few months.). It will be fun to shop for equipment at the Arizona Astronomy Expo next month - I need everything . I'll post pics when the dome arrives.

James


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woodscavenger
sage


Reged: 08/20/13

Loc: Boise, ID
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6137181 - 10/14/13 02:31 PM

I guess you will let us know about the invites for your first Star PArty!!

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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: woodscavenger]
      #6138192 - 10/15/13 12:39 AM

Quote:

I guess you will let us know about the invites for your first Star PArty!!




Absolutely! And I have already been approached about doing outreach for at least one local school. I look forward to it.


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Aquarist
Pooh-Bah


Reged: 08/27/12

Loc: Illinois
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6138496 - 10/15/13 08:18 AM

Snow load??? I can see it in Buffalo. But otherwise, WOW!

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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: Aquarist]
      #6139182 - 10/15/13 02:25 PM

That 150 lb snow load requirement (for the West side of a particular mountain in Idaho) was a big surprise and tough to solve. The country people explained it well. The area gets 10 feet of snow. Water weighs 62 lbs per cubic foot. If I get 6 feet of snow on the roof and then it rains causing the snow to be 50% water - the resulting load is 186 lbs per square foot. I get that.

That example is for a flat roof. There are then deductions one can take for roof slope, type of surface, etc. To make the dome reach that spec I also had to heat the dome - that deduction brought me into compliance.

Edited by rlandsboro (10/15/13 02:43 PM)


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Aquarist
Pooh-Bah


Reged: 08/27/12

Loc: Illinois
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6140399 - 10/16/13 08:13 AM

How did you heat the dome?

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BYoesle
Post Laureate
*****

Reged: 06/12/04

Loc: Goldendale, Washington USA
Re: TamarackSkies Observatory build pics new [Re: Aquarist]
      #6140591 - 10/16/13 10:22 AM

What a very nice dream come true - often felt that the home & domed observatory would be so convenient...

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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: Aquarist]
      #6146685 - 10/19/13 01:10 PM

Regarding heating the dome. I ran a short duct (maybe 5') into the obs from the heated space next to the obs. I put an electric damper and fan in that duct. It will be thermostatically controlled at a minimum - with t-stat set to maybe 45 degrees. So when the obs temp drops to 45, then warm air is pulled from the home into the obs to keep the dome's metal skin above freezing. This adds some inefficiency to the home heating but it should also make things easier on the equipment in the dome by avoiding extreme cold temps.

I say "at a minimum" because the sloped roof around the dome has a snow melt system of heated wires under the shingles. That system is activated by both a temp sensor and a moisture sensor. It would be nice to have that control activate the damper. That way I would only heat the obs and dome if it is actually snowing. I'll just have to figure it out. Part of the fun.

I also have another duct/damper/fan to take air out of the dome for summer needs. This to draw cooler air in through the dome slot and out the bottom of the obs to equalize summer temps when it is warmer.


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tim57064
Pooh-Bah
*****

Reged: 08/23/12

Loc: Southeast South Dakota,USA
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6160328 - 10/27/13 08:28 AM

James, I have been following your OBS build thread and was wondering if you have any recent images of your progress? I ask this because the last posting of any was in June.
We all love what you are doing and what you have accomplished so far.
Would truly like to see your recent progress as some of us are a visual sort.Please and Thank You


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csa/montana
Den Mama
*****

Reged: 05/14/05

Loc: montana
Re: TamarackSkies Observatory build pics new [Re: tim57064]
      #6160513 - 10/27/13 10:53 AM

Quote:

Would truly like to see your recent progress as some of us are a visual sort.




+1. Indeed we would love to see the progress!


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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: csa/montana]
      #6161681 - 10/28/13 12:14 AM

Thanks for the interest. I've spent the last months working on that really big warm room attached to the obs . Finishing interior ceilings and preparing for flooring. Also finishing the exterior and landscaping/driveway, etc. So I don't really have any new obs picks. The dome is due to ship soon and I plan to spend time at the site then to handle that install. I'll get plenty of pics then. But it will be a few more weeks I think.

FYI - the estate homes in the community typically have names. Mine was being called the "Skyview Lodge" so I adopted the name.


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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6170437 - 11/01/13 02:51 PM Attachment (31 downloads)

Here is a pic of the roof snow melt system - it gets installed under the shingles. The dome will be installed on a sloped roof dormer. So this system provides enough heat to prevent snow from building up on the roof against the high side of the dome - and to prevent ice dams from building up on the lower sections of roof as water from melted snow runs off during freezing temps. The rain gutters also have their own heat sytems.

The system is activated by temp and moisture sensors - so it actually has to be raining or snowing with freezing temps before it is energized.

Edited by rlandsboro (11/01/13 02:53 PM)


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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6170454 - 11/01/13 03:00 PM Attachment (23 downloads)

Here is the snow melt system on the high side of the dome. What you see is a thin metal mesh that gets electrically warmed when the system's sensor criteria for temp and moisture are met. The primary vendors for these systems (I think) are Heatizon and Warmquest.

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rlandsboro
super member


Reged: 02/23/12

Loc: Scottsdale, AZ. USA
Re: TamarackSkies Observatory build pics new [Re: rlandsboro]
      #6170462 - 11/01/13 03:03 PM Attachment (32 downloads)

The dome vendor - Pier Tech - says the dome is about ready to ship. Here is a pic they sent me of the dome being finished in their shop.

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thesungazer
Sungazer
*****

Reged: 05/06/03

Loc: Maryland
Re: TamarackSkies Observatory build pics new [Re: BYoesle]
      #6170878 - 11/01/13 06:51 PM

Impressive!

Greg


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stmguy
sage


Reged: 10/11/12

Loc: Western NH
Re: TamarackSkies Observatory build pics new [Re: thesungazer]
      #6171594 - 11/02/13 09:11 AM

Looks really ,really nice!
Norm


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Raginar
Postmaster
*****

Reged: 10/19/10

Loc: Rapid CIty, SD
Re: TamarackSkies Observatory build pics new [Re: stmguy]
      #6171617 - 11/02/13 09:24 AM

The ice melt system is unique. I haven't seen that before.

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