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What is the difference between a pinwheel galaxy and a swirl galaxy?
Explain what is the major differences
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Pinwheel Galaxy.
http://www.spacetelescope.org/images/screen/heic0602a.jpg
The Pinwheel Galaxy (like Southern M83), is also called a Flocculent Spiral Galaxy, it exhibit spiral arms that are not well defined. Pinwheel Galaxies are in esense Swirl Galaxies, better known as Spiral Galaxies.
Pinwheel Galaxy then falls into this family clasification. The Spiral Galaxies, are a type which amounts for almost 77% of the galaxies in the universe. They are mostly made of a flat, rotating disk containing large mass of stars, gas and dust, and a central concentration of stars known as the bulge, drawn by gravitational forces into the form of a relatively flat disc. The disc is rotating, with the dense central body of stars moving at greater speeds than those towards the rim of the disc. As a result, the pattern of stars within the Galaxy as viewed from directly above or below the disc has formed into a spiral.
http://www.mahalo.com/answers/science-and-mathematics/what-makes-up-a-swirl-galaxy
Spiral galaxies are further classified by how tightly their spiral arms are wound. A galaxy with very tightly wound arms would be called "type a" galaxy. A "type b" galaxy has more loosely wound arms.
These are some famous Spiral Galaxies:
Pinwheel Galaxy (M33, M83 or M101)
Sunflower Galaxy
Whirpool Galaxy
Andromeda Galaxy
Triangulum Galaxy
The Pinwheel Galaxy (like Southern M83), is also called a Flocculent Spiral Galaxy, it exhibit spiral arms that are not well defined. Pinwheel Galaxies are in esense Swirl Galaxies, better known as Spiral Galaxies.
Pinwheel Galaxy then falls into this family clasification. The Spiral Galaxies, are a type which amounts for almost 77% of the galaxies in the universe. They are mostly made of a flat, rotating disk containing large mass of stars, gas and dust, and a central concentration of stars known as the bulge, drawn by gravitational forces into the form of a relatively flat disc. The disc is rotating, with the dense central body of stars moving at greater speeds than those towards the rim of the disc. As a result, the pattern of stars within the Galaxy as viewed from directly above or below the disc has formed into a spiral.
http://www.mahalo.com/answers/science-and-mathematics/what-makes-up-a-swirl-galaxy
Spiral galaxies are further classified by how tightly their spiral arms are wound. A galaxy with very tightly wound arms would be called "type a" galaxy. A "type b" galaxy has more loosely wound arms.
These are some famous Spiral Galaxies:
Pinwheel Galaxy (M33, M83 or M101)
Sunflower Galaxy
Whirpool Galaxy
Andromeda Galaxy
Triangulum Galaxy
source(s):
http://spitzer.caltech.edu/images/1945-ssc2008-14b-The-Pinwheel-Galaxy-M101...
http://en.wikipedia.org/wiki/Spiral_galaxy
http://cas.sdss.org/dr6/en/proj/basic/galaxies/spirals.asp
http://spitzer.caltech.edu/images/1945-ssc2008-14b-The-Pinwheel-Galaxy-M101...
http://en.wikipedia.org/wiki/Spiral_galaxy
http://cas.sdss.org/dr6/en/proj/basic/galaxies/spirals.asp
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voted helpful: davepamn
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