It’s a lenticular galaxy. Lenticular galaxies are believed to be the late stage in their evolution—they are neither elliptical nor spiral. Spirals are middle-aged galaxies with vast, pin wheeling arms that contain millions of stars. Spirals also contain cloud of gas and dust that are the nurseries where new stars are born. When all the gas is depleted or lost into space, the arms gradually fade away, and the spiral shape begins to weaken. In the end, what remains is a lenticular galaxy, a disc full of old, red stars surrounded by whatever gas and dust remaining the galaxy.
Image Credit: NASA