Kitt Peak observatory photo reveals several hundred thousand stars in M4. Hubble studied a small region of the star cluster (bottom left). At bottom right is a sample of the region just 1 light-year across; newly found white dwarfs are circled.
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Kitt Peak observatory photo reveals several hundred thousand stars in M4. Hubble studied a small region of the star cluster (bottom left). At bottom right is a sample of the region just 1 light-year across; newly found white dwarfs are circled. |
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