It's not to say that star creation has stopped totally in the galaxy, but the amount is tiny compared to other galaxies. If you don't have gas and dust, you are not able to create new stars. Lenticular galaxies tend to be old galaxies that have used up most of their gas and dust and are just living the twilight years. If you compare that with the Andromeda Galaxy, you will see that centre is not brighter than the rings. An example of a non-barred lenticular is Lindsay-Shapley Ring, which has a bright bulge than the ring even if the ring does look a bit peculiar.

The second type are non-Barred Lenticulars which don't have a bar and a simple layout. There are the barred Lenticulars such as NGC 936, affectionally known as Darth Vader's Galaxy after the character Darth Vader in the Star Wars films. There are two types of Lenticular Galaxies. Misidentification can come when the central bulge is not very bright. When the galaxies are viewed head-on, they can be misidentified as being elliptical, which is tighter than the other forms. laying the foundatons for the big bang theory. Edwin Hubble's greatest achievement was to show that the Universe was expanding. Edwin Hubble devised the classification scheme, the same person who the Hubble Space Telescope is named after. SB0 for Barred Lenticular Galaxy, meaning it will have a bar-like centre like in NGC 4608Īs you can see from the illustration below, courtesy of Nova Celestial, the position where Lenticular Galaxies appear in the galaxy classification system.A Lenticular Galaxy will have a Morphological Type of either:.

Spiral galaxy facts