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E. Hornschemeier (6), A. E. Zabludoff (12), A. Heiderman (4), A. Maybhate (11), B. Whitmore (13), Canada, C. Gronwall (1), C Mendes de Oliveira (11), D. M. Elmegreen (5), D. Szathmary (2), I. S. Konstantopoulos (1), J. C. Charlton (1), J. E. Hibbard (10), J. English, J S Mulchaey (15) ((1) The Pennsylvania State University, K. E. Johnson (9, K. Fedotov (2), P. R. Durrell (3), P. Tzanavaris (6, R. Chandar (8), S. C. Gallagher (2), University of Arizona","submitted_at":"2010-07-20T21:53:02Z","abstract_excerpt":"[Abridged] The environment where galaxies are found heavily influences their evolution. Close groupings, like the cores of galaxy clusters or compact groups, evolve in ways far more dramatic than their isolated counterparts. We have conducted a multiwavelength study of HCG7, consisting of four giant galaxies: 3 spirals and 1 lenticular. We use Hubble Space Telescope (HST) imaging to identify and characterize the young and old star cluster populations. 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