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Lilienthal - 27-feet replic is ready !

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#1 Heidescoper

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Posted 29 November 2015 - 03:10 AM

hi all,

 

I am very happy to tell  You :

 

yesterday was the opening from  the new (old) 27feet telescope.  

Exatly 222 years after the first opening by the owner J.H. Schroeter the astronomical communtiy

has now an new old telescope. It´s not only a museum and eyecatcher at teh entrace of the town.

It can be use parcticaly to observe the stars !!! 

The newtonian has new modern 20inch mirror with 27 feet focal ratio.

 

Now we have in Europe an axis of very old big telescopes:

Birr Castle/ Irland -- Leviathan  

Lilienthal near Bremen/Germany --  27feet

Madrid  -- Herschel 25 feet 

 

Yesterday "Oberamtsmann" Schroeter left his tomb for a hour to visited the banquet :flowerred: .  

 

Bye

Christian

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  • AT1.jpg

Edited by Heidescoper, 29 November 2015 - 06:32 AM.

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#2 Heidescoper

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Posted 29 November 2015 - 03:12 AM

here Schroeter himself ( in the background You see an other replic of an 7 feet newtonian) :

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#3 Heidescoper

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Posted 29 November 2015 - 03:13 AM

after 15 years planing, sampling money and doing this built this year

 

Lilienhal has now a juwel in the nightplace   :

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  • AT6.jpg

Edited by Heidescoper, 29 November 2015 - 03:17 AM.

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#4 Astrojensen

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Posted 29 November 2015 - 04:13 AM

:bigshock:  :waytogo:   HOLY SMOKES! That is just beyond awesome! 

 

But - it was 50cm mirror (20 inches), not a 50 inch. It's ridiculously awesome that you can actually USE the thing. Have you observed with it yet? How is the performance?

 

 

Clear skies!
Thomas, Denmark



#5 Heidescoper

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Posted 29 November 2015 - 06:33 AM

hilsen Thomas,

 

right 20" :blush: ...

 

no, it´s only finished for this event.

There are some features to correct, then in 2 month obervation should be possible.

 

 

Bye

Christian


Edited by Heidescoper, 29 November 2015 - 06:35 AM.

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#6 ziridava

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Posted 29 November 2015 - 08:18 AM

Christian

 

My full heartfelt congratulations for this great achievement!

I know what's all about because I'm a kind of '' History of Astronomy '' freak.

But I'm afraid most of the readers are not aware of the place and importance of Schroeter .

I believe it would be great to add here a short  story of Schroeter,of  his telescopes and of  his exceptional observations .

Please ,but please , don't forget to mention  his  books !

 

Regards , Mircea aka Ziridava



#7 Rich (RLTYS)

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Posted 29 November 2015 - 08:21 AM

That is so cool! Would love to look thru that scope!  :applause:  :drool5:  :cool:

 

Rich (RLTYS)



#8 terraclarke

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Posted 29 November 2015 - 11:48 AM

Christian
 
My full heartfelt congratulations for this great achievement!
I know what's all about because I'm a kind of '' History of Astronomy '' freak.
But I'm afraid most of the readers are not aware of the place and importance of Schroeter .
I believe it would be great to add here a short  story of Schroeter,of  his telescopes and of  his exceptional observations .
Please ,but please , don't forget to mention  his  books !
 
Regards , Mircea aka Ziridava


We lunar observers are well aware of Schroeter's contributions to the appreciation and understanding of la Luna's features. The Cobra Head, AKA Schroeter's Valley certainly comes to mind.

http://www.rense.com/general71/p1.htm

What a wonderful restoration! Definitely a must see for any of us planning a trip to Germany!
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#9 ziridava

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Posted 29 November 2015 - 12:55 PM

Terra 

 

Please accept my apologies.

I don't know how and why  I was convinced this post appeared in the ''Begginers'' Forum.

I have dear friends on this Classic Telescopes Forum and I read the very interesting  threads but , not owning classics , I'm not intitled to post  here.

We meet at Lunar Observation Forum.

Herschel from whom Schroeter bought telescopes ,was mainly a DSO observer.

Contrasting with the great Herschel ,  Schroeter was mainly a Shallow Sky Observer ...

But the 18 inch telescope was made locally , without Herschel's contribution.

BTW, I remember a drawing of the great tellescope of Lilienthal was published also in one of Richard Berry's ''Telescope Making''.

Some of Schroeter's  books ,so called ''....Fragmente...'' are available on Internet but only  in German which unfortunatelly I don't understand.

 

Regards , Ziridava



#10 terraclarke

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Posted 29 November 2015 - 01:43 PM

Ziridava, no apology is needed, no offense taken. If I gave you that impression, please accept my apology. My response was meant to echo your own enthusiasm about, not only this wonderful restoration of such an historical instrument, but also for a great, and often too little known, lunar observer. Herr Schroeter deserves more recognition and I applaud both Christian and you for posting about this great man and his telescope.
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#11 davidmcgo

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Posted 29 November 2015 - 05:34 PM

Simply amazing!  I never really understood the descriptions of his observatory from what I've read in Epic Moon and other articles and books.  The whole top wth the telescope and counterweights rotates with the little hut while the brick building beneath is fixed, and the tube is pivoted at the eyepiece.  Ingenious!

 

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#12 Vesper818

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Posted 29 November 2015 - 06:49 PM

Mircea
You are absolutely entitled to post here. No one is excluded, and your knowledge of classical astronomy history, and small scope atm fits right in here.
Christian, what a wonderful scope, and dedication. I look forward to reading your history and observations.
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#13 Astrojensen

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Posted 30 November 2015 - 03:40 AM

 

 

Mircea
You are absolutely entitled to post here. No one is excluded, and your knowledge of classical astronomy history, and small scope atm fits right in here.

Words of truth. I wanted to say the same, but you beat me to it, Carol.

 

 

Clear skies!
Thomas, Denmark


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#14 Rich (RLTYS)

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Posted 30 November 2015 - 06:57 AM

hi all,

 

I am very happy to tell  You :

 

yesterday was the opening from  the new (old) 27feet telescope.  

Exatly 222 years after the first opening by the owner J.H. Schroeter the astronomical communtiy

has now an new old telescope. It´s not only a museum and eyecatcher at teh entrace of the town.

It can be use parcticaly to observe the stars !!! 

The newtonian has new modern 20inch mirror with 27 feet focal ratio.

 

Now we have in Europe an axis of very old big telescopes:

Birr Castle/ Irland -- Leviathan  

Lilienthal near Bremen/Germany --  27feet

Madrid  -- Herschel 25 feet 

 

Yesterday "Oberamtsmann" Schroeter left his tomb for a hour to visited the banquet :flowerred: .  

 

Bye

Christian

You can't get more classic then that!

 

Rich (RLTYS)



#15 ziridava

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Posted 30 November 2015 - 10:58 AM

Terra

 

Definitely no offense here ,I fully agree with you and I'm glad to share with you the enthusiasm about   Schroeter as Moon and planetary  observer.

 

Thank you very much Carol and thank you very much Thomas for your very kind and warm words.

 

For continental Europe , Lilienthal was also  a major step in Telescope  Making  due to the reflecting telescope with 51 cm  mirror we are talking about.

Here we should mention Professor Schrader and also Harm Gefken who  assisted  him at casting ,grinding and polishing of mirrors.

The first of the two 51 cm mirrors was made by Schrader ,together with smaller mirrors.

Latter Gefke become a mirror/ and complete telescope /maker on his own.

Schroeter used extensively a 5 inch x four feet telescope and a six inch x seven feet telescope with mirrors made by Herschel.

But the mountings for this smaller telescopes were made by Schroeter.

His observatory was the center of ''Astronomische Gesellschaft'' founded by von Zach and with Schroeter as first president.

Most I know about Schroeter is from the book ''Watchers of the Skies'' by Willy Ley which was translated to my native language.

I don't speak German but I'm fascinated by Schroeter so I'm looking forward to learn more about him.

 

Once again , congratulations to Christian and to the whole team who made all  this possible.

 

Best regards , Mircea aka Ziridava


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#16 Heidescoper

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Posted 02 December 2015 - 02:31 AM

hi all,

 

Ziridava:

>congratulations to Christian and to the whole team who made all  this possible.<

 

thank You, but I am a guest of this event and reported only here about it.

 

I want help later to make observations & guiding tours for the visitors when the scope go active. 

 

 

Bye

Christian


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#17 BigC

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Posted 05 December 2015 - 09:37 AM

!Now THAT is a long tube Reflector! Congratulating. all who worked on it.

#18 Lew Chilton

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Posted 05 December 2015 - 04:00 PM

Here's an 18th Century reproduction that appeared at the Riverside Telescope Makers Conference in Big Bear, California circa 2005. I don't recall the builder or other details. That's Jack Eastman standing in front of it. Those early telescopes were measured in focal length, not aperture, as I recall.

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Edited by Lew Chilton, 05 December 2015 - 04:02 PM.


#19 Astrojensen

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Posted 05 December 2015 - 04:11 PM

The builder was Jack Eastman, from what I can remember. The aperture was 3" or so, the focal length around 200". I believe the overall comments was how close it was to a modern 3" in visual capabilities (except wide field, obviously). 

 

 

Clear skies!
Thomas, Denmark




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