Double helix sombrero, colliding galaxies (APOD 08 Mar 2008)
Posted: Sat Mar 08, 2008 5:39 am
There are two marvelous helical structures to be seen in the dust lane of M104
(especially after clicking on the pictures to get the highest resolution).
http://apod.nasa.gov/apod/ap080308.html
http://antwrp.gsfc.nasa.gov/apod/ap070121.html
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http://en.wikipedia.org/wiki/Sombrero_Galaxy
<<William Herschel independently discovered [the Sombrero Galaxy] in 1784 and additionally noted the presence of a "dark stratum" in the galaxy's disk, what is now called a dust lane.>>
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<<In English-speaking countries "sombrero" typically refers to a type of hat originating in Mexico. The English word sombrero is a loan word from Spanish, where the term is used to refer to any hat with a brim. It derives from the Spanish word sombra, meaning "shade" or "shadow". Spanish speakers outside Mexico refer to what English speakers call a Sombrero as a "Mexican hat". Sombreros usually have a somewhat high pointed crown and a very wide brim, which may be slightly upturned at the edge, used for protection from the hot sun in Mexico. Peasant sombreros are usually made of straw, while wealthier Hispanics wear sombreros made of felt. It is almost unseen in modern urban settings, except as part of a folkloric outfit worn in certain festivities. Cowboys of the American southwest later adopted the sombrero and modified it into the cowboy hat.>>
(especially after clicking on the pictures to get the highest resolution).
http://apod.nasa.gov/apod/ap080308.html
http://antwrp.gsfc.nasa.gov/apod/ap070121.html
---------------------------------------
http://en.wikipedia.org/wiki/Sombrero_Galaxy
<<William Herschel independently discovered [the Sombrero Galaxy] in 1784 and additionally noted the presence of a "dark stratum" in the galaxy's disk, what is now called a dust lane.>>
---------------------------------------
<<In English-speaking countries "sombrero" typically refers to a type of hat originating in Mexico. The English word sombrero is a loan word from Spanish, where the term is used to refer to any hat with a brim. It derives from the Spanish word sombra, meaning "shade" or "shadow". Spanish speakers outside Mexico refer to what English speakers call a Sombrero as a "Mexican hat". Sombreros usually have a somewhat high pointed crown and a very wide brim, which may be slightly upturned at the edge, used for protection from the hot sun in Mexico. Peasant sombreros are usually made of straw, while wealthier Hispanics wear sombreros made of felt. It is almost unseen in modern urban settings, except as part of a folkloric outfit worn in certain festivities. Cowboys of the American southwest later adopted the sombrero and modified it into the cowboy hat.>>