Various for a galaxy claviers modernes - Galaxy Photography, Images by Jason Ware


Spiral galaxies are classified into two groups, ordinary and barred. The ordinary group is designated by S or SA, and the barred group by SB. In normal spirals (as seen at above left) the arms originate directly from the nucleus, or bulge, where in the barred spirals (see right) there is a bar of material that runs through the nucleus that the arms emerge from. Both of these types are given a classification according to how tightly their arms are wound. The classifications are a, b, c, d ... with "a" having the tightest arms. In type "a", the arms are usually not well defined and form almost a circular pattern. Sometimes you will see the classification of a galaxy with two lower case letters. This means that the tightness of the spiral structure is halfway between those two letters. Spiral galaxy NGC 1365

And it just might work. While we’re all waiting to get our hands on the Galaxy S8— possibly the most anticipated Android phone of all time—Samsung has borrowed some of the best features from the Note 7 to create a tablet truly worthy of the Galaxy name. 


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