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Fig. 1


A 12.5′′ × 12.5′′ portion of the composite F814W image of the M 87 halo, demonstrating its resolution into stars. Three globular clusters are seen in the lower half of the picture. This section is located in the extreme southeast corner of the ACS field, ≃150′′ or 12.1 kpc from the center of M 87. Stellar crowding increases rapidly toward the galaxy center but is manageable at this location.

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