21. Recently, it has become practical to perform aperture synthesis with arrays of optical telescopes . 22. This already happens with radio telescopes and I think more rarely with optical telescopes . 23. The Solar Optical Telescope on the Hinode satellite is one example of this design. 24. Optical telescopes eventually will be used to measure the mass of the X-ray object.25. The second stage would have two 5-metre optical telescopes and two 20-metre radio telescopes. 26. The patch size inversely affects the Fried Parameter and the resolution of optical telescopes . 27. As a result, optical telescopes can perform much closer to their theoretical limit of resolution. 28. For the observations are used optical telescopes and radiotelescopes. 29. Unlike optical telescopes , CALET operates in a scanning mode. 30. The Aft Optics System is part of the Optical Telescope Element in the flight telescope
