surveys
galaxies: distances and redshifts
cosmology: large-scale structure of Universe
galaxies: elliptical and lenticular
cD
galaxies: spiral
galaxies: dwarf
[PHYS.ASTR.CO] Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics
[SDU.ASTR] Sciences of the Universe/Astrophysics