What constellation is the earth in the universe?

No one will tell the landlord which constellation the earth is, because the landlord's question is meaningless.

Let's talk about what a constellation is. When we observe the starry sky, we can't see the distance of the stars, so we imagine all the stars on a sphere with the same distance from us. This sphere is called the celestial sphere.

Constellations are artificially divided areas on the celestial sphere. The celestial bodies in a sky area belong to a constellation, so the constellation is only for the celestial sphere, and the celestial sphere is only for the celestial bodies in the sky. Observing from the earth, the earth is obviously not a celestial body in the sky, and naturally it cannot be said that it is in any constellation.

However, observation in other places can tell what constellation the earth is in. For example, today the earth sees the sun in Gemini, and correspondingly, the sun sees the earth in Ophiuchus. This will change with the change of observation position.