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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 ...

APOD Index - Galaxies: Spiral Galaxies - Astronomy Picture of the Day

apod.nasa.gov/apod/spiral_galaxies.html

Thumbnail image. Click to load APOD for this date. APOD: 2003 March 10 - M101 : The Pinwheel Galaxy Explanation: Why do many galaxies appear as spirals?

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 ...

Spiral (and other Disk) Galaxies - SEDS Messier Database

messier.seds.org/spir.html

Click icon to see a spiral galaxy of Messier's catalog ... Among the galaxies, there are apparently three main categories, according to their appearance: the disk ...

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 ...

Galaxies, Galaxy Information, Galaxy Facts, News, Photos ... - Science

science.nationalgeographic.com/science/space/universe/galaxies-article/

A composite image of the Messier 81 (M81) galaxy shows what astronomers call a "grand design" spiral galaxy, where each of its arms curls all the way down ...

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 ...

Super Spiral Galaxies - Sky & Telescope

www.skyandtelescope.com/astronomy-news/super-spiral-galaxies-1803201623/

Mar 18, 2016 ... Astronomers have identified 53 “super spirals” — spiral galaxies that are huge and incredibly luminous — as part of a project exploring ...

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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 ...