Chapter 23

Galaxies Chapter 23

Fig. 23.1

Fig. 23.2 Dust such as in the Spiral Galaxy, NGC 4565) prevents us from seeing near our galactic plane

Fig. 23.3 The Hubble Classification of Galaxies

Fig. 23.4 NGC 3379, an E0 galaxy

Fig. 23.5 NGC 3115 , is among the most elongated elliptical galaxies

Fig. 23.6 Stellar motions in an elliptical galaxy

Fig. 23.7 Shapes of Elliptical galaxies

Fig. 23.8 Barred Spirals

Normal Spirals Fig. 23.9

Fig. 23.10 Spiral Galaxy, M74

Fig. 23.11 Barred Spiral Galaxy M83 (in Hydra)

Fig. 23.12 Irrelgular Galaxy, Large Magellanic Cloud

Fig. 23.13

Fig. 23.14

Fig. 23.15

Fig. 23.16 M51 and NGC 5195

Fig. 23.17

Fig. 23.18 AM0644-741, A Ring Galaxy

Fig. 23.19

Fig. 23.20

Fig. 23.21

Fig. 23.22 M104, Sombrero Galaxy

Fig. 23.24 Hubble’s measurements

Fig. 23.25 Modern Measurements

Fig. 23.26