Object Analysis
The Silver Coin Galaxy (NGC 253) is a starburst galaxy in the Sculptor Group. It is one of the brightest galaxies visible from the southern hemisphere and is often viewed with binoculars. It gets its name from its appearance in small telescopes: a silvery, elongated oval.
Located 11 million light-years away, NGC 253 is dusty and turbulent. The "starburst" phase means it is converting gas into stars at a furious rate. This activity creates a superwind of material blowing out of the galaxy's center, which has been detected in X-ray and H-alpha observations.
This outflow of enriched gas suggests that starburst galaxies like the Silver Coin are responsible for polluting intergalactic space with heavy metals, providing the seeds for future solar systems in the vast voids between galaxies.