Сегодня родился Струве Василий Яковлевич
On April 15, 1793 Struve Vasily Yakovlevich was born. This is a Russian and German astronomer, one of founders of star astronomy, the first director of Pulkovo Observatory. Besides, he was a founder of a dynasty of astronomers. Thanks to his efforts Pulkovo Observatory has been equipped with perfect tools, including the biggest refractor in the world at that time with a 38-centimeter lens.