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Iranian homegrown telescope releases 1st deep space images

Hack-Hook

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the $2 million instrument, built by a consortium from Belgium, Canada, and India, is much cheaper than telescopes with glass mirrors
yes they are cheaper , no doubt about it . but keeping the mirror in perfect shape is harder , and that the problem with this type of telescope . but as i said right now i can't say which will have better quality photo , we must stay about half a year to a year for the systems to be fine tuned .

there are lots of news but 2 or 3 are really worthy of being called news , the rest are click bait
I knew in 2003 the cost of the project estimated to be 10 milion dollar but for the reason that i said the final cost by independent sources estimated to be 30 million dollar (I'm not aware of any official data released on that)
 

Kingdom come

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30 million dollar
What's your opinion on this?
I think it's too expensive 🤔
The images will be publically available yes ?
The posted images are beautiful though

but keeping the mirror in perfect shape is harder
Another drawback is that it can't aim to the side or down too much but the maintenance costs and building costs are much lower
 

Hack-Hook

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But congratulations to world's 3rd largest observatory
its not world 3rd largest telescope, i doubt it will be even in top 30

Another drawback is that it can't aim to the side or down too much but the maintenance costs and building costs are much lower
what can i say , there is no perfect design , each design have its advantage and alongside that its weakness . we are not in perfect world
 

epebble

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3.4 meter optical (visible spectrum) mirror ..the mirror was made in Germany the rest of the observatory was all Iranian designed...the location of this observatory is what makes it special for me..Iranian skies are usually dry and free of moisture ..perfect for such work.The video shows the location View attachment 890085

Time for Iran to design and build a Radio telescope to complement the this optical telescope.
Terrestrial telescopes without active optics (or at least adaptive optics) are no longer state-of-the art. If one has to have them, at least have in a low (dust) pollution area like Andes Mountain (South America) or some mountain in a South Pacific Island.

 

Hack-Hook

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Terrestrial telescopes without active optics (or at least adaptive optics) are no longer state-of-the art. If one has to have them, at least have in a low (dust) pollution area like Andes Mountain (South America) or some mountain in a South Pacific Island.

and INO have active optic
 

Fasbre2

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Here’s one I took earlier, 10 years ago..
NGC2903 galaxy..
View attachment 890107 And another one taken in 2012 ( horse head and flame nebulae in the constellation of Orion)
FCCC86C7-DE11-4506-8329-CDFC930953F9.jpeg
 
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Fasbre2

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Nice, and what damage for that kit ?
Including filters and other accessories roughly 10k USD.
Around 6-7k USD for the ccd camera and filter set alone.
Around 1.5k for 80mm apo triplet scope
Around 1.5k for the mount
Around 1.5k for guiding scope and camera, field flatter, mount accessories, software. Etc.
 
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Sineva

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The $25 million telescope consists of two mirrors, one main with a diameter of 3.4 meters and a weight of 4 tons, and a secondary mirror with a diameter of 60 centimeters. The whole telescope and rotating dome has 120 thousand pieces. Its 250-ton rotating dome structure is suspended on 8 wheels, which can withstand all environmental loads and rotate in any direction as smoothly as possible

With this Iranian telescope, we can observe up to 7 billion light years (almost half of the life of the universe) and objects deeper than 7 billion light years can be observed with longer exposure, but the optimal limit is the same 7 billion years.

In this telescope, some works have been done for the first time in Iran, such as: hydrostatic bearings and mirror actuators, whose task is to maintain the shape of the mirror at all angles in the order of nanometers.

The 3.4 meter glass purchased with 2 grams of 99.999% pure aluminum with a thickness of 60 to 80 nanometers has been coated with sputtering technology and turned into the original mirror. This high-tech coating layer includes the following:

1) Vacuum technology, which did not exist on such a scale in the country before, and small or medium chambers were used to test satellites (a chamber of about 4 meters in a very high vacuum.
2) System technology that aluminum plasma and vaporize it and make a layer on the primary glass

The location of the observatory is not cloudy in 250 nights of the year, and it is one of the best areas in the world to obtain atmospheric visibility parameters, and its average for the Iranian telescope has reached 0.65 arc seconds and up to 0.5 arc seconds in the nights that it has visibility.

In the future, with more settings, we will have an even better view, of course, the wonderful tracking system of this telescope looks for the target with an accuracy of less than 0.1 arc seconds! (0.1 seconds of arc means 1 on 3600 degrees)
 

aryobarzan

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Excellent engineering work at such scale and precession for Iran.
  • 250-ton rotating dome structure suspended on 8 wheels, which can withstand all environmental loads and rotate in any direction as smoothly as possible and built on top of a mountain!
  • Sputtering a 3.4 meter 4 ton glass with aluminium and control the thickness to 60 to 80 nanometers
As a person who has done sputtering of gold on much smaller items , I can imagine the vacuum chamber required to build for just doing that mirror coating work
 

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