A Lenticular galaxy is a type of galaxy that is often considered to be an intermediate between spiral galaxies and elliptical galaxies. They are situated at the intersection of the Hubble tuning fork diagram, and labelled "SB0" or "S0" depending on whether the contain a bar or not.
They often have a mixture of features seen in spiral and elliptical galaxies; for example they often have a bulge and disk like structure like spiral galaxies but have no spiral arms or dust like an elliptical. They are called lenticular galaxies as they look like lenses when viewed edge on.
- ↑ Lenticular galaxy from astronomy.swin.edu.au
- ↑ Galaxy types from astro.cornell.edu