The Galaxy Population
Principal component analysis ? spectral types ? luminosity functions for each type, also ?(r)…
APM image data ? surface brightnesses ? bivariate brightness distribution - i.e. ?(L,?)
Equivalent widths and line indices for spectral features ? star-formation rate, age, metallicity…
Velocity dispersions (for giant galaxies, ? ?200 km/s) ? Tully-Fisher/FP relations for large uniform sample
Ideal dataset for selecting follow-up samples of interesting objects (especially for southern-hemisphere observers)