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General Astronomy >> General Observing and Astronomy

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neotesla
Pooh-Bah
*****

Reged: 11/18/10

Loc: Canada
Re: Massive Telescopes... new [Re: WarmWeatherGuy]
      #6082473 - 09/15/13 05:27 PM

JMI advertises these...

http://www.jimsmobile.com/buy_ntt40.htm


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sslcm56
super member


Reged: 07/20/12

Loc: Montgomery, Al.
Re: Massive Telescopes... [Re: WarmWeatherGuy]
      #6083224 - 09/16/13 02:55 AM

Quote:

Quote:

Hey Everyone,

Does anyone know the biggest of each types of telescope you can actually buy?

I'm pretty sure the Orion 50" Dob is the biggest Dob, and the Meade 20" is the biggest Cassegrain, but can anyone tell me any other telescopes that are bigger? Refractors, Dobs, Schmidt-Cassegrains?

Louis




I found an ad in Sky & Telescope for these guys

http://planewave.com/products-page/telescopes/

They have a 27.6" for $200,000. It looks like a type of CAT.





I have spent a lot of time looking at the CDK700. Someday when I hit the lottery..... Last year they were only $180,000.00. I should have gotten it before the price increase.


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Bill Weir
Carpal Tunnel
*****

Reged: 06/01/04

Loc: Metchosin (Victoria), Canada
Re: Massive Telescopes... new [Re: Louietheflyisme]
      #6085131 - 09/17/13 12:48 AM

Quote:

Yeah... Do you know what the biggest telescope anyone on these forums has made? Just out of curiosity...




http://www.nitesky.org/Largest%20Amateur%20Telescopes.html

Some are members here and some aren't. Then there ia also Tom Clark who has built 36" and a 42" dobsonians. There is also Steve Aggas who built a 36". Then there is the Astronomical Research Institute where most of the scopes are built by the Head/owner operator where they go up to 50".
http://www.astro-research.org/observatory_directory.htm

These are all that I can think of off the top of my head.

Bill


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Jon Isaacs
Postmaster
*****

Reged: 06/16/04

Loc: San Diego and Boulevard, CA
Re: Massive Telescopes... new [Re: Bill Weir]
      #6085309 - 09/17/13 05:57 AM

Quote:

Then there ia also Tom Clark who has built 36" and a 42" dobsonians.




Tom is a member of Cloudy Nights...

Jon


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Louietheflyisme
professor emeritus


Reged: 06/17/13

Loc: Australia
Re: Massive Telescopes... new [Re: Jon Isaacs]
      #6085376 - 09/17/13 07:20 AM

Has anyone seen any forum threads with these guys' telescopes shown on them? Just out of curiosity, again .

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kauf
super member


Reged: 07/31/06

Loc: Taicang city, Jiangsu Province...
Re: Massive Telescopes... new [Re: Louietheflyisme]
      #6085448 - 09/17/13 08:22 AM

I have a 170mm refractor~ and 300mm reflector~ )

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Louietheflyisme
professor emeritus


Reged: 06/17/13

Loc: Australia
Re: Massive Telescopes... new [Re: kauf]
      #6087351 - 09/18/13 05:58 AM

Nice... How long'd it take for each of them?

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star drop
contra contrail
*****

Reged: 02/02/08

Loc: Snow Plop, WNY
Re: Massive Telescopes... new [Re: Louietheflyisme]
      #6088445 - 09/18/13 05:06 PM

Quote:

Has anyone seen any forum threads with these guys' telescopes shown on them? Just out of curiosity, again .



Use this Google Search link and each time type in something like Tom Clark's 42" telescope, etc. and peruse the Cloudy Nights search results.


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Tom Clark
professor emeritus
*****

Reged: 11/14/07

Loc: North of Deming, NM
Re: Massive Telescopes... new [Re: star drop]
      #6089574 - 09/19/13 09:17 AM

There are photos of my observatory and 42" on this CN thread:
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/1,2,3,4,5,8,9,10/Board/Observatory/Number/5435774/page/1/view/collapsed/sb/5/o/all/fpart/3


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WarmWeatherGuy
Carpal Tunnel
*****

Reged: 08/27/11

Loc: Orlando, FL 28° N, 81° W
Re: Massive Telescopes... new [Re: Tom Clark]
      #6089586 - 09/19/13 09:31 AM

Quote:

There are photos of my observatory and 42" on this CN thread:
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/1,2,3,4,5,8,9,10/Board/Observatory/Number/5435774/page/1/view/collapsed/sb/5/o/all/fpart/3




The link didn't work. I made a link that will work here.


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Alein 1630
super member


Reged: 01/18/13

Loc: Dutchess Count,y NY
Re: Massive Telescopes... new [Re: Jon Isaacs]
      #6089854 - 09/19/13 12:25 PM

Quote:

Quote:

I'm not actually interested in buying one, just looking for some info. Curious, I guess. I mean ones that aren't specially made for you as well.




As others have pointed out, they were vaporware.. a webpage, a dream and nothing more.

One does not want to think about the largest Cassegrain you can actually buy.. it's just a question of how much you can afford.

APM on Astromart

If one needs a bigger scope than 80 inches, they are out there.

Jon




i have odd thoughts of a 81" dob with saturn/jupiter filling 100 degrees apov


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Alein 1630
super member


Reged: 01/18/13

Loc: Dutchess Count,y NY
Re: Massive Telescopes... new [Re: obin robinson]
      #6089860 - 09/19/13 12:27 PM

Quote:

Okay here is stupid question time:

Instead of one huge 50" mirror why not just have four precisely aligned 20" telescopes like an inteferometer? Use a Mallincam or other high res camera for viewing. Link them together in a network. You would effectively have more aperture than one 50" telescope. Your complexity would be in synchronizing the telescopes together but with modern high resolution mounts it seems like it would be relatively easy. Has anyone done this before at home?

obin




sounds like an awesome idea, and i have already thought of this happening.


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Dave Mitsky
Postmaster
*****

Reged: 04/08/02

Loc: PA, USA, Planet Earth
Re: Massive Telescopes... new [Re: Alein 1630]
      #6090096 - 09/19/13 02:40 PM Attachment (13 downloads)

Here's a photo of Tom Clark's 42" (nicknamed "The Beast") that I took when he lived at Chiefland.

Dave Mitsky


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Dave Mitsky
Postmaster
*****

Reged: 04/08/02

Loc: PA, USA, Planet Earth
Re: Massive Telescopes... new [Re: Dave Mitsky]
      #6090110 - 09/19/13 02:53 PM Attachment (14 downloads)

Here's a shot of some fellow DVAA members and me along with John Vogt's wonderful 32" ATM Dob at the 2000 Stellafane convention.

Dave Mitsky


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csrlice12
Postmaster
*****

Reged: 05/22/12

Loc: Denver, CO
Re: Massive Telescopes... new [Re: Dave Mitsky]
      #6090256 - 09/19/13 04:27 PM

Where's your viewing hoods?? It ain't official without the viewing hoods!

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Louietheflyisme
professor emeritus


Reged: 06/17/13

Loc: Australia
Re: Massive Telescopes... new [Re: csrlice12]
      #6090299 - 09/19/13 04:51 PM

Wow. They're big . If only...

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careysub
Carpal Tunnel
*****

Reged: 02/18/11

Loc: Rancho Cucamonga, CA
Re: Massive Telescopes... new [Re: Jon Isaacs]
      #6097985 - 09/24/13 08:44 AM

Quote:

Quote:

I'm not actually interested in buying one, just looking for some info. Curious, I guess. I mean ones that aren't specially made for you as well.




As others have pointed out, they were vaporware.. a webpage, a dream and nothing more.
...




From what I have gathered this is not exactly true.

Orion planned on having them built in part by Normand Fullum, who would at least supply the optics. Fullum is still providing these giant mirrors, and building scopes for them also. You don't order them from Orion, you order them direct from Normand Fullum, but that is just a detail of who handles the contract. Orion is not a telescope builder.

All very large telescopes are essentially "made to order". A telescope builder like Webster or StarStructure or JMI develop and advertise designs, but they don't build them and keep them in stock. You order one, and then they build it just for you (you have to put up a hefty down-payment). Even PlaneWave dealers list all of that companies highest end telescopes as "custom orders", these units aren't kept in stock.

If you have the money that one of these monsters costs, you can get someone to build it for you. There are several options in the business, it would be surprising if at least one of them would not be interested in a super-large project, even if it was not an advertised model. (Fullum in particular seems ready to tackle any project, no matter how large.)


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careysub
Carpal Tunnel
*****

Reged: 02/18/11

Loc: Rancho Cucamonga, CA
Re: Massive Telescopes... new [Re: Jon Isaacs]
      #6097994 - 09/24/13 08:50 AM

What happened to the six original 72" mirrors?

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