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July 10, 2008 09:00 AM (EDT)

News Release Number: STScI-2008-25

What's My Age? Mystery Star Cluster Has 3 Different Birthdays

All images from this news release:

White Dwarf Stars in Open Cluster NGC 6791 Image Type: Astronomical/Illustration White Dwarf Stars in Open Cluster NGC 6791PRC2008-25
NGC 6791: Digitized Sky Survey View Image Type: Astronomical NGC 6791: Digitized Sky Survey View
NGC 6791: Full Hubble ACS Field Image Type: Astronomical NGC 6791: Full Hubble ACS Field
Small Region of ACS Field Reveals Faint White Dwarfs Image Type: Astronomical Small Region of ACS Field Reveals Faint White Dwarfs
NGC 6791: Three Stellar Ages Illustration Image Type: Illustration NGC 6791: Three Stellar Ages Illustration
Ground-Based Image Showing Location of NGC 6791 Image Type: Astronomical Ground-Based Image Showing Location of NGC 6791
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