The Green Star

The Green Star is a mythological star with the size variables and standard properties of a blue giant, however is instead a green color in place of blue. In addition to the properties of a blue giant, it is proclaimed to have the ability to control everything in the aquiritis galaxy as the most powerful thing within it, as every other star, black hole, planet, moon, and more is claimed to orbit around it. It is unknown where the story and the idea of the star originates from, though The Chaos Hivemind is the main culture surrounding and researching it and where the first documented instances of it were found, with others picking it up from there..

The Chaos Hivemind
The Chaos Hivemind actively seeks out for it, wishing to acquire an all-knowledge of it, deeming it to further their goals and to utilize it's power.

Dah'kl
Dah'kl himself thinks that it clearly does not exist, as the galactic union and the dah'kl empire, as well as even the chaos hivemind, are practically or have been everywhere in the galaxy and yet nothing of this sort has come up. He also adds that it's just a story, one with a star where he sent a team at least 10 times to look for it, and they never found anything but normal stars. Thus, he concluded that it therefore doesn't exist.

The Grazer
The Grazer completely disregards it, even more so then dah'kl, seeing it as of no use and unimportant to things. He views those who believe it or claim to have seen it as "mentally delusional", and seeing any evidence as merely illusions.

Color Illusion
It is possible that the green star is just a white or blue star, seeing as stars use a black body spectrum for their coloring, which never is green. Despite this, some stars are misidentified as green to some observers, which is due to a optical illusion that makes a red object turn others into a false green.

Supernatural Existence
No singular star, even a blue giant, could possibly have such a grip and control on a galaxy like how the green star does. Nor could a star have a green color, so it's possible the green star is instead a greater, superpowered force with unnatural and impossible properties. It would explain effects that are otherwise impossible for a star, and it's own power. Some variations of this theory suggest it's from beyond the plane of reality, with god-like abilities.

However, under this theory, it may not technically even be a star.

The Designer
It may actually be another avatar for The Designer, which explains why it could not be found, as the designer is trillions of lightyears away from aquiritis galaxy. It also explains some of it's immense power.

Another variation is that the designer created it, but shortly moved it elsewhere. This theory and it's variation would explain it's logic breaking properties. In addition, this theory also has some ties to the supernatural existence theory.

Outside of Aquiritis
Under this theory, the green star is actually operating and existing outside of the aquiritis galaxy, so it could not be found. The Theory, however, is largely ignored by researchers and those who seek it, as it doesn't provide any details or estimates as to how far the green star actually is, and how the green star can do this outside of the galaxy.