As a window permanently open to the sky, the Planetarium in Constanţa is like a lighthouse on the Black Sea coast. The first public objective of this kind in the country, it was established in the same year man managed to set foot on the moon for the first time (1969). The visitors range from children to the elderly. The demonstration of a planetarium is a projection on an artificial dome of a starry sky. In the room equipped with air conditioning, one can spend a night in a few tens of minutes, always with the certainty of a clear sky. The planetarium has a dome with a diameter of eight meters and a capacity of 80 seats. The projection device used for the demonstrations is ZKP-2 ty...pe (1988), made in Germany (Karl Zeiss Jena). In the planetarium lobby one can visit an astronomy-themed exhibition. The dome of the planetarium hosts demonstrations with the ZKP-2 projector and one can see: stars (about 5,000), planets, the Moon, constellations (zodiac constellations), comets, meteors, Jupiter's Galilean satellites, artificial satellites, the Solar System – revolution movement of the planets in the solar system. Horizontal, equatorial and ecliptic coordinates can be determined. There are also demonstrations with the Trippensse Planetarium: the formation of the seasons, the equinoxes and solstices, the eclipses of the sun and moon.