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Building an observatory, links of interest.

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#26 Guest_**DONOTDELETE**_*

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Posted 03 September 2006 - 04:16 PM

These are great examples. I'm really wondering, basically, if anyone has an opinion on using a boulder as an appropriate base for the concrete pad that will ultimately support the pier??

#27 Stewart

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Posted 04 September 2006 - 03:09 AM

Hi,
I'm not sure about using a boulder at the base of a pier. Could be a lot of hard work and nothing but problems. I would be worried about the two seperate components moving in the ground.

I opted for a concrete pier in my observatory. I dug a hole a lot larger and deeper than i required for the pier and filled it with concrete. Before the concrete set i pushed the pier cage into the concrete.

Once the concrete set i placed the pier shutter over the rebar cage and concreted the pier. The result was an 12" diameter pier that is attached to an extremely large chunk of concrete. In two years there has been no movement of the pier yet. The pier is isolated from the observatory and it causes me hardly any vibration problems either.

There are some plans of my pier design here:
http://groups.yahoo....ier Dimensions/

Regards
Stewart Waters

#28 Guest_**DONOTDELETE**_*

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Posted 07 September 2006 - 08:57 AM

I see what you're saying. I was planning on building a large pad as a base for the pier (which will be made out of 12" dia sonotube packed with rebar etc) on top of the boulder. Just not sure that the concrete will adhere sufficiently to the boulder to support what will eventually be a roughly 12' high pier on top of it.

#29 Stewart

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Posted 08 September 2006 - 04:17 AM

Hi,
I think your design might work well enough without the boulder. I also have concerns about the concrete adhering to the boulder and if they seperate the weight of all that concrete above might start some movement.

Regards
Stewart
P.S. See what the guys at: http://tech.groups.y...lescopic_Piers/ have to say about your design. They are very knowledgeable when it comes to pier design.

#30 Bob Hayes

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Posted 19 October 2006 - 03:05 PM

Here's a link to my dome construction pics that I completed in July of 2006.

http://good-times.we...550511533ICdPnP

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#31 BigK

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Posted 07 November 2006 - 11:51 AM

Bob,

Very nice! What is the diameter?

Ken

#32 dbeckstrom

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Posted 14 January 2007 - 11:03 PM

Here is a link to photos and a write-up on my observatory construction:

http://www.astroskie...topic.php?t=435

#33 Bob Hayes

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Posted 30 January 2007 - 03:22 PM

Thanks Ken. It's 8' in diameter and houses a G-11 and Tak FS-128.

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#34 Michael Morris

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Posted 31 January 2007 - 01:50 AM

Here is a link to photos and a write-up on my observatory construction:

http://www.astroskie...topic.php?t=435


Link asks for a username and passwrod.

#35 Richard B. Drumm

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Posted 31 January 2007 - 09:41 AM

All ya gotta do is sign up! It's free!
Just like here on CN.
Rich
Moderator at AstroSkies.

#36 bloodhound31

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Posted 07 March 2007 - 04:59 AM

I know its a double post, but it looks like it is a topic relevant place to put this.

Heres my contribution.

Baz.

http://www.aussiepeo...ignobservatory/

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#37 dbeckstrom

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Posted 09 April 2007 - 11:16 PM

If you're interested in buying, building or automating an observatory you might want to check out www.observatorycentral.com

Its not a commercial site. Its an enthusiast site where people can learn about observatories and see observatories that others have bought or built. There are photo galleries and illustrated building projects that I found really helpful when I built my observatory. All brands of domes, roll-offs and home-built observatories are talked about and everyone is welcome.

You can post photos of your observatory for others to see.
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#38 rodney

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Posted 23 April 2007 - 08:06 AM

If you need further assistance in your observatory planning check out the Explora Dome dedicated yahoo group:

http://tech.groups.y...p/Explora-dome/

You can get all your information on the Explora Domes history and projects. Also get up to the minute manufacturer updates.

You can post photos there or view other built observatories all in one location.

#39 pinkflyd34

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Posted 24 April 2007 - 10:23 PM

http://www.jemartool...observatory.htm

#40 Flint.Hill

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Posted 23 May 2007 - 02:54 PM

Here is the URL of the observatory I just completed:
http://www.wcc.net/~...tory/index.html

Flint.Hill

#41 Colten Edwards

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Posted 24 May 2007 - 01:32 PM

Here's the start of my roll off roof type observatory at 51.917N and 107.117W
http://www.astrophot...bservatory.html

#42 Richard B. Drumm

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Posted 19 October 2007 - 07:14 PM

Here's a thread here in "Observatories" that Ken started and needs (IMHO) to be easily found in the future:
Solar Power for observatories thread.
Marcus' response is full of important info. Putting a link here is as good as making a sticky of the thread.
Rich

#43 Colonel Bogey

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Posted 08 December 2007 - 05:44 AM

For those considering to build a rooftop observatory, I've uploaded a couple of pic here: SCRAP Observatory

But I would only recommend this solution if you need to, e.g. getting high enough - in my case above the trees.

#44 Kaizu

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Posted 08 December 2007 - 08:43 AM

Is the chimney still in use? Does it harm any how the equipments or observing. Or isn't there anytining to see on the North-West sky. (I'm little bit jealous of your equpments, especially the mount).

Kaizu

#45 Colonel Bogey

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Posted 08 December 2007 - 09:27 AM

No, it isn't - only two channels are used as passive ventilation exhausts. I have not noticed any turbulence but can cut the chimney off completely if that would be a problem.

#46 Canadian

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Posted 09 December 2007 - 02:16 PM

Has anyone thought about using a 1000 gallon plastic fertilizer storage tank as an observatory? Any ideas let me know.


My neighbour and I had one. Our intent was to have a warm room, our scopes would still be outside. It had been cracked, so all we had to do was pick it up and take it away - for the cost of a flat of beer. We lined it with reflective material, used red rope lights and had shelves built almost all the way around. We kept a desktop computer inside, a small heater and two rolling chairs. Where the crack was, we made and framed a door. Outside, a few feet from the door, a permanent pier was installed. After it was done or before we started (I don't remember which) we gave some thought to having the scope inside, but couldn't come up with a viable plan to cut the top/bottom and still keep it weatherproof. It served our purpose that winter, allowing us to keep a lot warmer (no more ice in the moustache), have all our accessories close at hand and not have to cart everything back into the house. We eventually replaced it with a store bought observatory, and pushed/trucked the warm room across the street, to where it became a playhouse for some kids.

Posted ImagePosted Image

This was before the door was finished, and when we picked it up where you can see the crack.
The pipe coming through above the stars, was where the wires for the scope and camera came out.
It ended up with lattice around it so that it couldn't be seen from the deck.


#47 radioactive

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Posted 06 January 2008 - 09:50 PM

using a fertilizer tub?
well it kinda grows on ya I guess :roflmao: :lol:

#48 Tom Clark

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Posted 28 January 2008 - 07:57 AM

During the recent poll on observatories, I was suprised to see that there were only five domes larger than 10' listed. This 24' dome was my first construction project. It wasn't that hard to build, only took five months, and cost under $10,000. When compared to the cost of a professional dome of this size, that is very reasonable. The dome holds a 42" Dob, and is under fairly dark skies in Chiefland, FL.

This link shows the dome and the 42 being constructed: http://tinyurl.com/2ozsvc
If you are considering a similar project, I'll be happy to give you a tour.

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#49 Tom Clark

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Posted 28 January 2008 - 07:58 AM

This photo shows the inside of the dome and scope.

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#50 jsmiller58

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Posted 29 January 2008 - 11:14 AM

Wow! All of us instantly and simultaneously got aperture and observatory envy...! :jump:

James






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