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Session 22 -- Galaxy Structure and Kinematics

Oral presentation, Monday, 30, 1994, 2:00-3:30

[22.05] WFPC-2 CMDs of Cepheid Calibration Fields in M33 and M31

New WFPC-2 data for M31 and M33 have been obtained as part of the {\it Hubble Space Telescope} Key Project on the Extragalactic Distance Scale. We present deep I-(V-I) color-magnitude diagrams and luminosity functions of a field in the inner region of M33 and a field in Baade's Field IV in M31. In the case of M33, these frames provide both a photometric tie-in to ground-based observations and provide an assessment of the amount of crowding in the vicinity of the Cepheids.

Monday program listing