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Flocculent spiral galaxy : ウィキペディア英語版 | Flocculent spiral galaxy
A flocculent spiral galaxy is a type of spiral galaxy, that is the functional opposite of the grand design spiral galaxy.〔COSMOS - SAO Encyclopedia of Astronomy, ("Grand Design Spiral" ) (accessed 23 April 2010)〕 Unlike the well defined spiral architecture of a ''grand design'' galaxy, ''flocculent'' galaxies are patchy, with discontinuous spiral arms.〔COSMOS - SAO Encyclopedia of Astronomy, ("Flocculent Spiral" ) (accessed 23 April 2010)〕 Approximately 30% of spirals are flocculent, 10% are grand design, and the rest are "multi-armed".〔Case Western Reserve University, Chris Mihos, ''ASTR222 - Spring 2008'', ("Spiral Structure" ) (accessed 23 April 2010)〕 The "multiple arm" type is sometimes folded into the flocculent-type.〔University of Virginia, Mark Whittle, ''ASTR 553/554 : Extragalactic Astronomy (2007)'', ("Lecture 5: Spiral Galaxies" ) (accessed 23 April 2010)〕 The prototypical flocculent spiral is NGC 2841.〔"A Near-Infrared Atlas of Spiral Galaxies", Debra Meloy Elmegreen, ("CH3. Discussion" ) (accessed 23 April 2010)〕 ==Examples==
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