Moscow Cassiopeia - Moskva Kassiopeya [1974 - USSR] sci fi

From the depths of space before the country reaches a radio signal from the star Alpha Cassiopeia sent intelligent beings. On Earth, a team of young fourteen astronauts to study distant constellations. The road is long and calculations, which reach the goal on the boat "Dawn" has already experienced, older astronauts. Because of sabotaging the "rabbit room" Lobanova ship is the ultimate aim of much in advance. Young heroes carry out its mission?