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Part 4: Elliptical galaxies. M87 an elliptical galaxy CFHT. NGC 2768 an elliptical galaxy. Leo I, dwarf elliptical galaxy. SDSS. NGC 4267, normal elliptical galaxy. SDSS. Spectra of galaxies. spiral z = 0.03. elliptical z = 0.11. SDSS. Compactness of elliptical galaxies.
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M87 an elliptical galaxy CFHT
NGC 2768 an elliptical galaxy
Spectra of galaxies spiral z = 0.03 elliptical z = 0.11 SDSS
The rich cluster Abell 1689 acting as a gravitational lens HST
CFHT Galactic collision in Abell 1185
Gas in elliptical galaxies X-rays Optical M49