Very large array or VLA is one of the modern radio telescope arrays. It consists of 25 27-meter dishes. The antennae can be moved along the arms of a Y-shaped pattern, allowing interferometry with maximum baseline of 36 kilometers. The highest angular resultion that can be reached is about 0.05 arcseconds.
... Sakhalin is separated from the mainland by the narrow and shallow Strait of Tartary or Mamiya Strait, which often freezes in winter in its narrower part, and ...