The Morgan classification (a galaxy classification scheme) classifies the galaxy by its prominent stellar spectral class, then according to morphology, and then according to the angle of view.
|af||a to f class|
|fg||f to g class|
|gk||g to k class|
|D||other rotational symmetry|
|L||low surface brightness|
|N||small bright nucleus (N galaxy)|
|Ep||elliptical with dust absorption|
Inclination (as seen from Earth) is indicated by a number 1-7, 1 for face-on to 7 for edge-on.