* Stars: Stars are within our own Milky Way galaxy, making them relatively close compared to other galaxies.

* Planet Neptune: Neptune is the furthest planet in our solar system, but still within our galaxy.

* Andromeda Galaxy: Andromeda is the closest major galaxy to our own Milky Way.

* Triangulum Galaxy: Triangulum Galaxy is the third-largest galaxy in the Local Group (the group of galaxies containing the Milky Way and Andromeda). It's much further away than Andromeda.

Therefore, the Triangulum Galaxy is the furthest object listed from Earth.