"Facet" a telescope to detect the low-luminous space objects is made up of 10 lens 400mm f / 2.8 from the Canon Bashny.Net

And is this a telescope to detect distant galaxies from Earth, which are difficult to detect using standard tools. Usually, even a powerful telescope can detect and fix a lot of space objects. But some of them are very dim because of the distance, and the light that emit such objects conceal the brighter stars and galaxies that are closer to the Earth.

In order to solve this problem it was created by some strange telescope, called Dragonfly Telephoto Array. Here, experts from the University of Toronto and Yale University used ten 400 mm lens from Canon, that allows you to capture the faintest light from very distant objects.

Such objects may be dwarf galaxies, supernova remnants, and points of interest for the study of objects. The telescope has proved himself - with the help of new class of galaxies, the size of the Milky Way, but the mass of only a thousandth of our galaxy. Light of such objects is very weak, and the galaxies themselves were nicknamed "fuzzy."

Naturally, the system includes not only the lens, but also the camera. This professional camera SBIG STF-8300M CCD, которые installed on the platform Paramount ME-II platform. On the lens specialists have found more and specific coating with an unusual structure (the size of the cell-cell is approximately equal to the wavelength of light). The cost of the system is estimated at about $ 135,000.

All lenses of the telescope at the same time give the image the same point in the sky. Several features of the optical systems of this type, the scientists were able to remove the "extra" light that interferes with the detection of faint objects. The telescope has begun to collect in 2013, and now the number of lenses adjusted to 10. The developers claim that it - no limit .

Source: geektimes.ru/post/251110/