Unbarred lenticular galaxy
Encyclopedia
Lenticular galaxy
A lenticular galaxy is a type of galaxy which is intermediate between an elliptical galaxy and a spiral galaxy in galaxy morphological classification schemes. Lenticular galaxies are disk galaxies which have used up or lost most of their interstellar matter and therefore have very little ongoing...
version of an unbarred spiral galaxy
Unbarred spiral galaxy
An unbarred spiral galaxy is a type of spiral galaxy without a central bar, or one that is not a barred spiral galaxy. It is designated with an SA in the galaxy morphological classification scheme.The Sombrero Galaxy is an unbarred spiral galaxy....
. They have the Hubble type of SA0
An example of this is the Galaxy AM 0644-741
AM 0644-741
AM 0644-741 is an unbarred lenticular galaxy, and a ring galaxy which means it has a ring of nebulae around it. AM 0644-741 is 300 million light-years away in the direction of the southern constellation Volans....
. For other examples see :Category:Unbarred lenticular galaxies.