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Friday, May 11, 2012

The variety of galaxies

The massive stellar systems - galaxies, distant and mysterious, one of the most exciting and most studied objects in astronomy today. In this article we look at the types of galaxies, their main differences and peculiarities. Galaxies in the universe is not similar to each other. Some are round and elliptical shape, while others are observed in the form of swirling spirals. In the 20-xx years of the twentieth century, Edwin Habll in their work proposed to classify the galaxies into three basic types: elliptical, spiral and irregular, denoted, respectively, E, S and Irr.

Astronomers have open a galaxy of split personality

Astronomers working with the telescope Spitzer released new images of NGC 4594, known as the Sombrero.  As a result, the researchers found out that it "suffers from split personality" - inside the giant elliptical galaxy essentially is a small spiral.  Article scientists appear in the journal Monthly Notices of the Royal Astronomical Society, and its summary is provided on the site of NASA.