The four types of galaxies are spiral, barred spiral, elliptical and irregular. Each group spans large variations in size, number of stars, star density and general...
Types of Galaxies
Galaxies are large groups of stars and other interstellar matter that occupy space. They're made up of stars, dust and gas held together by gravity. While astronomers don't know exactly how many galaxies there are, they do know the universe we can see...
These broad classes can be extended to enable finer distinctions of appearance
and to encompass other types of galaxies, such as irregular galaxies, which ...
Apr 18, 2000 ... There are three main types of galaxies: Elliptical, Spiral, and Irregular. Two of
these three types are further divided and classified into a system ...
These barred spiral galaxies
actually account for most of the spiral galaxies
in our Universe and it is believed that the Milky Way is actually of this type
As one might guess, they seem to lack a distinct shape like spiral or elliptical galaxies
One possibility is ... More »
Spiral galaxies are the most common type in the universe. Our Milky Way is a
spiral, as the rather close-by Andromeda Galaxy. Spirals are large rotating disks
Some are very small with only a few million stars. While others could have as
many as 400 billion stars, or even more. There are three kinds of Galaxies, Spiral,
Key points: Basic types of galaxy - spiral, barred, elliptical, irregular; types vs.
distance (how young galaxies differ from those around us). Spiral galaxies are
Jun 17, 2002 ... Astronomers now know that it is NOT an evolutionary sequence because each
type of galaxy has very old stars. The oldest stars in any galaxy ...
Astronomers group galaxies by shape, and although there are many different
types of galaxies, most fall into one of three categories: spiral, elliptical or