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Spiral galaxy

en.wikipedia.org/wiki/Spiral_galaxy

A spiral galaxy is a certain kind of galaxy originally described by Edwin Hubble in his 1936 work The Realm of the Nebulae and, as such, forms part of the ...

Spiral Galaxies - SDSS

cas.sdss.org/dr6/en/proj/basic/galaxies/spirals.asp

The most common type of galaxy is called a "spiral galaxy." Not surprisingly, spiral galaxies look like spirals, with long arms winding toward a bright bulge at the ...

What is a spiral galaxy? | Cool Cosmos

coolcosmos.ipac.caltech.edu/ask/217-What-is-a-spiral-galaxy-

Spiral galaxies get their name from the shape of their disks. In a spiral galaxy, the stars, gas and dust are gathered in spiral arms that spread outward from the ...

Spiral Galaxy | COSMOS

astronomy.swin.edu.au/cosmos/S/spiral galaxy

When Hubble developed his classification system for galaxies based on their appearance in optical light, he divided the spirals into those in which the spiral arm ...

normal spiral galaxy | astronomy | Britannica.com

www.britannica.com/topic/normal-spiral-galaxy

Spirals are characterized by circular symmetry, a bright nucleus surrounded by a thin outer disk, and a superimposed spiral structure. They are divided into two ...

Spiral and Elliptical Galaxies - damtp

www.damtp.cam.ac.uk/research/gr/public/gal_class.html

The classification of galaxies due to Hubble (1925) remains the most popular in use today. There are two main categories, the spiral and elliptical galaxies, but ...

New Insights on How Spiral Galaxies Get Their Arms2013-10 | www ...

www.cfa.harvard.edu/news/2013-10

Apr 2, 2013 ... Spiral galaxies are some of the most beautiful and photogenic residents of the universe. Our own Milky Way is a spiral. Our solar system and ...

How Does A Spiral Galaxy Get Its Arms? - Forbes

www.forbes.com/sites/jillianscudder/2016/03/22/astroquizzical-spiral-galaxy-arms/

Mar 22, 2016 ... Are the spiral arms in an elliptical just an accident of stars lining up? How different is a spiral galaxy from an elliptical one anyways?

Spiral Galaxy Facts - Softschools

www.softschools.com/facts/space/spiral_galaxy_facts/438/

Spiral galaxies get their name by the fact that they have a spiral or whirl shape. The "arms" of the spiral are the areas where stars are formed. These arms appear  ...

Spiral galaxy | Define Spiral galaxy at Dictionary.com

www.dictionary.com/browse/spiral-galaxy

Spiral galaxy definition, a galaxy having a spiral structure. See more.

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Spiral Galaxy Facts & Definition - Space.com

www.space.com

Aug 15, 2013 ... A spiral galaxy has a distinct winding shape. Most of the galaxies observed by astronomers are spiral galaxies.

Spiral Galaxy | NASA

www.nasa.gov

Dec 16, 2011 ... Resembling festive lights on a holiday wreath, this NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy M74 is an iconic ...

Spiral Galaxies - Windows to the Universe

www.windows2universe.org

Spiral galaxies may remind you of a pinwheel. They are rotating disks of mostly hydrogen gas, dust and stars. Through a telescope or binoculars, the bright ...