PLANETICA (Portable Planetarium)Melquiades

Planetica-Solar System With this portable planetarium you can determine the positions of the planets in the solar system at any time from 1970 to 2049. Planetica can be used in both hemispheres and is set to the solar time of the place of use. If necessary, take into account the summer/winter time differences. Planetica represents the movement of the first seven planets of the solar system, whose orbits are close to the ecliptic plane in which the Earth moves. Neptune and Pluto are very difficult to observe, represented by a series of dots at intervals of one year. On the outer edges of Planetica, the 12 constellations of the zodiac close to the ecliptic plane are represented with their heliocentric longitude, the origin 0 of which corresponds to the spring equinox. The planet Earth is rotating with the directions north, south, east and west marked. The LED light in the center, representing the Sun, can be turned on to see the day/night cycles. It is a wonderful teaching tool about the solar system. Comes in a box with instructions. Size: 14.4 cm diameter, 5 cm thick. Ages 12+