Ellipticals – classified by
shape
•E0 = most circular ® E7 = most elongated
•orientation could affect shape!
•giant ellipticals –few x mega
parsec diameter, >
1012 stars
•dwarf ellipticals – 1 kpc diameter, £ 106 stars
(our Galaxy d ~ 50 kpc)
•little i/s material, only old
red, low mass stars (like halo)
