Excuse me, what's the name of something that looks like a globe but has a constellation position?

It's called an astrologer The first astrologer was a mechanical miniature of the solar system. It is done by hand according to the clock manufacturing technology.

The mechanical astrologer displayed in a museum in Gotha, Germany, was made by a man named David Hahn for Duke Ernst II in 1780.

It was not until the emergence of mechanical optical projection astrologer that the word astrologer became familiar to people. Now people can generally define it this way: the planetarium displays the sun, the moon, other stars, planets and astronomical objects in a hemispherical sky in a dark room by projection. Astrologers can simulate the distribution of stars at different times and places. Coupled with images, sounds and various special effects-combined with multimedia, the demonstration of the planetarium is particularly vivid.

The most important planetarium projects objects such as stars, the sun and other planets. Planetarium can also simulate the projection of constellation portraits, thus making the demonstration more interesting.

Now there are portable planetarium and sky screen, which can let people see the demonstration of planetarium.