Hubble image archive
Structure of Milky Way's Halo (Artist's Illustration)
This illustration shows the Milky Way galaxy's inner and outer halos. A halo is a spherical cloud of stars surrounding a galaxy. Astronomers have proposed that the Milky Way's halo is composed of two populations of stars. The age of the stars in the inner halo, according to measu...
- Date
- Jan 1, 2012
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2012-25-3051-image
This illustration shows the Milky Way galaxy's inner and outer halos. A halo is a spherical cloud of stars surrounding a galaxy. Astronomers have proposed that the Milky Way's halo is composed of two populations of stars. The age of the stars in the inner halo, according to measurements by the Paranal Observatory, is 11.5 billion years old. The measurements suggest the inner-halo stars are younger than the outer-halo population, some of which could be 13.5 billion years old.
Credits
NASA, ESA, and A. Feild (STScI)Image Details
| About The Object | |
|---|---|
| Object Name | Milky Way |
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Image and source material are credited to the official mission archive linked below.
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