Galaxy morphological classification is a system used by astronomers to divide
galaxies into ... and to encompass other types of galaxies, such as irregular
galaxies, which have no obvious regular st...
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 ...
Learn About Galaxies With KidsAstronomy.com. There are billions of ... There are
three kinds of Galaxies, Spiral, Elliptical, and Irregular. The only difference ...
Jun 17, 2002 ... Types of Galaxies. Chapter index in this window — — Chapter index in separate
window. This material (including images) is copyrighted!
Apr 13, 2016 ... Subclasses of elliptical galaxies are defined by their apparent shape, .... Hubble
recognized these two types of irregular galaxies, Irr I and Irr II.
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Jun 15, 2010 ... A little lesson about the main types of galaxies we have in the Universe. This
video covers the Sprial, Elliptical and Irregular Galaxies.
Spectral Types. - H-R Diagram ... The Hubble Tuning Fork diagram puts galaxies
into categories, and each of the categories corresponds to a different type of
galaxy. ... Elliptical galaxies, such as M87 (left), have very little gas and dust.
Stars, gas, and interstellar dust orbit the center of the galaxy due to the
gravitational ... The different types of galaxies not only appear different, but have
The most beautiful galaxies are called spirals. The Milky Way is a spiral, and so is
the Andromeda galaxy (M31).
A classification based on their optical appearance or morphology is limited to four
fundamental types of galaxies—ellipticals, spirals, irregulars, and S0s. The ...