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It should be in a desert.
5-15 similar lens cones are binded together,small size(about 30 cm?),same direction.
The purpose is to find exoplanet?

It is like WASP below. It is in a desert and lower than WASP. enter image description here

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closed as too broad by damned truths, Eduardo Serra, TildalWave, Moriarty, astromax Jan 15 at 0:35

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.

    
This question doesn't really fit the purpose of Astronomy.SE which is to answer questions with depth and clarity. This question does not contribute to the site in a useful way. –  damned truths Jan 13 at 4:50
    
It is not a quiz. I just forget its name. –  questionhang Jan 13 at 6:30
    
Could you provide more information like location, etc? –  Envite Jan 13 at 6:34
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1 Answer 1

European Extremely Large Telescope (E-ELT) seems to fit the bill:

    enter image description here

     Giant eye: The 39-metre E-ELT will dwarf existing optical telescopes, and the hope is that this will help spot Earth-like planets
     beyond our galaxy (Copyright: European Southern Observatory)

  • Five-mirror design using advanced adaptive optics and primary mirror with 798 hexagonal segments
  • The site selected in 2010 was Cerro Armazones in Chile’s Atacama Desert
  • Will attempt to image Earthlike exoplanets and detailed studies of distant, first galaxies

More on the ESO E-ELT page.

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This is no "30cm" as the OP said –  Envite Jan 13 at 9:39
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@Envite I ignored that part, since there's no way anyone's gonna find exoplanets with 5-15 lens cones of 30 cm. E-ELT uses mirror tiles that are about 1.45 meters across (which would be roughly 30" in radius). –  TildalWave Jan 13 at 10:24
    
If I know its location, I would know its name. I just remember there is a picture taken in a desert. link –  questionhang Jan 13 at 13:26
    
@questionhang I think you answered your own question then, there's a second WASP (SuperWASP-South) located near Sutherland in South Africa. Not exactly a desert, but during the hottest months when the grass and bushes would be all burnt and dry, it wouldn't look much different to one either. E.g. check the first photograph on this Wiki page. –  TildalWave Jan 13 at 13:32
    
Different view completely. I remember the telescope stands just on the sand ground with ups and downs,not flat ground ,not in a building. The only similarity is their multi tube configuration. Besides,I can not find that picture if I google WASP. –  questionhang Jan 13 at 13:41
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