Back to Glossary

Small Magellanic Cloud

A dwarf irregular galaxy that is a satellite of the Milky Way, situated about 210,000 light-years away in the constellation Tucana. The SMC is characterized by its low metallicity and active star-forming regions like NGC 346.

Source: science.nasa.gov

APODs including "Small Magellanic Cloud"

Young Stars of NGC 346

12/05/2022

Young Stars of NGC 346
Image Credit: NASA Astronomy Picture of the Day

The massive stars of NGC 346 are short lived, but very energetic. The star cluster is embedded in the largest star forming region in the Small Magellanic Cloud, some 210,000 light-years distant. Their winds and radiation sweep out an interstellar cavern in the gas and dust cloud about 200 light-years across, triggering star formation and sculpting the region's dense inner edge. Cataloged as N66, the star forming region also appears to contain a large population of infant stars. A mere 3 to 5 million years old and not yet burning hydrogen in their cores, the infant stars are strewn about the embedded star cluster. In this false-color Hubble Space Telescope image, visible and near-infrared light are seen as blue and green, while light from atomic hydrogen emission is red.