What about Orion's spiral arm and Orion's galaxy or nebula?

Classification: science and engineering disciplines

Problem description:

One minute I said Orion or Andromeda was an extragalactic galaxy, and the next minute I said Orion's spiral arms. I don't even know what Orion is. Ask me what it is. Is it part of the Milky Way? I know the four spiral arms of the Milky Way, but I don't know what their relationship is with the Milky Way or Orion or Perseus, or with the Earth or the solar system. The solar system is in the spiral arms of Orion, but isn't it from the Milky Way? How to get to Orion galaxy!

Analysis:

Orion is a constellation, which is what we call an area in the sky. Because the bright stars in the sky make up the appearance of Orion, it is called Orion.

All the stars in Orion that we can see with the naked eye are in the Milky Way, and the distance is very different, but they are all in the same direction of the earth, and we seem to be very close. The solar system, including the earth, is just an ordinary small star and its planetary system.

A cantilever of the Milky Way is in the direction of Orion, so it is called Orion spiral arm. In the sky of Orion, we can also see an extragalactic galaxy, which we call the Orion Nebula. In fact, it is a galaxy on the same level as the Milky Way, which is very far from the whole Milky Way.