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 ...
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
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 ...
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
Spirals are characterized by circular symmetry, a bright nucleus surrounded by a
thin outer disk, and a superimposed spiral structure. They are divided into two ...
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 ...
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 ...
Mar 22, 2016 ... Are the spiral arms in an elliptical just an accident of stars lining up? How
different is a spiral galaxy from an elliptical one anyways?
Spiral galaxies get their name by the fact that they have a spiral or whirl shape.
The "arms" of the spiral are the areas where stars are formed. These arms appear
Spiral galaxy definition, a galaxy having a spiral structure. See more.