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HubbleSite Comparison of a WFPC2 Thermal Vacuum Globular Cluster-Mask Image to Wfpc1

  • Thread starter Space Telescope Science
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Space Telescope Science

After NASA Hubble Space Telescope's refurbishment to correct spherical aberration, its resolution for imaging stars is expected to increase by a factor of 10-15 over ground-based, and a factor of 2-3 over the pre-reburbished Hubble. The expected improvement in resolution is demonstrated by comparing a Hubble WFPC2 Thermal Vacuum globular cluster-mask (right panel) to a simulated view of the same globular cluster as viewed with Hubble's WFPC1 (left panel).

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