Pismis 24 is a stunning star cluster that lies within the nebula NGC 6357, which resides about 8,000 light-years away. In this sonification of the Hubble image, a top-down scan maps brightness to volume and pitch for both the stars and nebula.
The stars are assigned to musical pitches played on a classical guitar (brighter stars are louder and higher pitched), and the nebula uses a continuous range of frequencies (brighter regions are louder and higher pitched). Red, green, and blue channels are mapped to low, medium, and high frequency ranges respectively.
Credits: Image: NASA, ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain); Acknowledgment: Davide De Martin (ESA/Hubble); Sonification: SYSTEM Sounds (M. Russo, A. Santaguida)