Physics 101 - Galaxy worksheet

These links take you to a selection of images of galaxies. Using the Hubble "tuning fork" classification of galaxies
https://en.wikipedia.org/wiki/Hubble_sequence 
make notes of the various features you see in these galaxies. Use a blank sheet of paper, then just write the galaxy name and make some comments about its features: spiral arms, H II regions, OB associations, dust lanes, etc. Do all of these for credit.

Andromeda, M31
https://apod.nasa.gov/apod/image/0512/m31_gendler_Nmosaic1.jpg

NGC1300
https://cdn.spacetelescope.org/archives/images/screen/opo0501a.jpg

M104 Sombrero Galaxy
https://cdn.spacetelescope.org/archives/images/screen/opo0328a.jpg
and in infrared:
https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Sombrero_Galaxy_in_infrared_%28Ssc2005-11a3%29.jpg/1024px-Sombrero_Galaxy_in_infrared_%28Ssc2005-11a3%29.jpg

M51 Whirlpool Galaxy
https://cdn.spacetelescope.org/archives/images/screen/heic0506a.jpg

M83
https://cdn.spacetelescope.org/archives/images/screen/heic1403a.jpg

M94 starburst galaxy
https://cdn.spacetelescope.org/archives/images/screen/potw1542a.jpg

M82 starburst galaxy
https://cdn.spacetelescope.org/archives/images/screen/heic0604a.jpg

The Pinwheel galaxy - a grand design spiral galaxy
https://cdn.spacetelescope.org/archives/images/screen/heic0602a.jpg

NGC2841  flocculent spiral
https://cdn.spacetelescope.org/archives/images/screen/heic1104a.jpg

M74
http://www.spacetelescope.org/static/archives/images/pl_screen/heic0719a.jpg

NGC5866
https://cdn.spacetelescope.org/archives/images/screen/opo0624a.jpg

Abell 2218 rich cluster of galaxies
https://cdn.spacetelescope.org/archives/images/screen/heic0814a.jpg

Coma cluster of galaxies
https://apod.nasa.gov/apod/ap060321.html

These images come from the Hubble gallery:
http://www.spacetelescope.org/images/archive/category/galaxies/