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Magellanic spiral

Spiral galaxies with one spiral arm

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The Large Magellanic Cloud (LMC), one of the nearest galaxies to our Milky Way, as viewed by ESA’s Gaia satellite using information from the mission’s second data release. This view is not a photograp
European Space Agency · CC BY-SA 3.0 igo

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Through Spiral galaxy

Lab · Class 11Galaxies & Cosmic Structure

Magellanic spiral galaxies also have a stratified stellar structure; main sequence stars are found in their spiral arm, and supergiants are clustered in a thick rectangular bar across the middle.

Magellanic spirals

SAm galaxies are a type of unbarred spiral galaxy, while SBm are a type of barred spiral galaxy. SABm are a type of intermediate spiral galaxy.

Type Sm and Im galaxies have also been categorized as irregular galaxies with some structure (type Irr-1). Sm galaxies are typically disrupted and asymmetric. dSm galaxies are dwarf spiral galaxies or dwarf irregular galaxies, depending on categorization scheme.

The Magellanic spiral classification was introduced by Gerard de Vaucouleurs, along with Magellanic irregular (Im), when he revamped the Hubble classification of galaxies.

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