Erigol was a planet in the Beta Quadrant that was the homeworld of the Caeliar civilization. Erigol also had several native lower lifeforms, including an enormous, semi-transparent millipede-like creature species. Compared to Earth, Erigol had a hot and thick climate.
Erigol was destroyed in 2168, when its sun went nova. The effect was caused by intervention by an extra-galactic civilization of Caeliar in order to preserve the timeline which had created them. (Destiny novel: Gods of Night)