The cluster and nebula lie about 168,000 light years away, in one of the Milky Way's orbiting satellite galaxies, the Large Magellanic Cloud.

R136 is situated in the central regions of the nebula, while Hodge 301 is located about 150 light years away, to the north west as seen from Earth.

Hodge 301 was formed early on in the current wave of star formation, with an age estimated at 20-25 million years old, some ten times older than R136.

[2] Since Hodge 301 formed, it is estimated that at least 40 stars within it have exploded as supernovae, giving rise to violent gas motions within the surrounding nebula and emission of x-rays.

The two clusters thus provide astronomers with a direct comparison between the impact of supernova explosions and stellar winds on surrounding gases.