SB0 - a type of lenticular galaxy which falls between elliptical and spiral galaxies in the classification. ![]() Other categories are necessary to identify specific galaxies. Barred spiral galaxies are given the general classification of “SB” - short for spiral barred. They Come in Five ClassificationsĮdwin Hubble created the basis for the galactic classification system scientists still use today. Astronomers believe these bars form because of a density wave radiating from the galaxy’s center, which reshapes the stars’ orbit closest to the galaxy’s core and creates the bar structure. There are many more stars in these bars than in the rest of the galaxy, so they stand out when observed from a distance. Instead, they glow brightly because of star density. It’s important to remember these bars might appear solid, but they are anything but. Their difference lies in a massive bar-shaped structure in the galaxy’s center. They spin, appearing similar to an interstellar hurricane and featuring two to four arms extending from the galaxy’s edges. They Get Their Name From a Bar of Starsīarred spiral galaxies share many of the same characteristics as standard spiral galaxies and have a supermassive black hole in their core. How is this different from the spiral galaxy? Here is a closer look at some fascinating facts about barred spiral galaxies, including the one humanity calls home. There are two types of galaxies left to explore. ![]() They’ve even peered at elliptical galaxies, the remnants of massive galactic collisions. Researchers have taken a peek at spiral galaxies, some of the most abundant in the universe. There is a lot to learn about galaxies and science has only just begun. ![]() When you buy through links on our site, we may earn an affiliate commision.
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