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… More »
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What types of galaxies do we find in the universe? ... At the moment, we consider common types of galaxies and we ask about characteristics of galaxies that you can see with visible light. ... Or perhaps some of the elliptical galaxies are made from merging of other types of galaxies.
zebu.uoregon.edu/~soper/Galaxies/types.html zebu.uoregon.edu/~soper/Galaxies/types.html
Galaxies of all types, though of a wide variety of shapes and appearances, have many basic common features. They are huge agglomerations of stars like our Sun, counting several millions to several trillions. Most of the stars are not lonely in space like our Sun, but occur in pairs (binaries) or multiple systems.
seds.lpl.arizona.edu/MESSIER/galaxy.html seds.lpl.arizona.edu/MESSIER/galaxy.html
There are three main types of galaxies: Elliptical, Spiral, and Irregular. Two of these three types are further divided and classified into a system that is now known the tuning fork diagram. When Hubble first created this diagram, he believed that this was an evolutionary sequence as well as a classification.
www.astro.cornell.edu/academics/courses/astro2201/galax... www.astro.cornell.edu/academics/courses/astro2201/galaxies/types.htm
Many astronomers have asked one another what they think the most beautiful object in the sky is, and many of them reply galaxies. Swirled with different colors and shapes, galaxies are the epitome of stellar beauty.
library.thinkquest.org/23830/galaxies.htm library.thinkquest.org/23830/galaxies.htm
There are two other types of galaxies. Galactic galaxies are inside the Milky Way, and can be seen without a telescope. Extra-galactic galaxies are outside our galaxy, and we need a telescope to see them. The closest galaxies to the Milky Way are the Magellanic Clouds.
library.thinkquest.org/J002231F/Galaxies/typesofgalaxie... library.thinkquest.org/J002231F/Galaxies/typesofgalaxies.htm
as illustrated by the Messier galaxies ... "Early" Hubble types are top, "late" bottom in this diagram. For spirals, "Bar" structures move a galaxy to the right. ... As almost all galaxies, the 40 galaxies in Messier's catalog (including the M102 candidate NGC 5866) find their place in the Hubble type diagram, as shown below.
www.seds.org/messier/xtra/supp/gal-ttab.html
What different types of galaxies are there? What are their similarities and differences? ... There are indeed different types of galaxies. The main types are spiral galaxies (like our own MilkyWay), elliptical galaxies and irregular galaxies. An irregular galaxy has an undefined shape and has lots of young stars, dust and gas.
imagine.gsfc.nasa.gov/docs/ask_astro/answers/980215c.ht... imagine.gsfc.nasa.gov/docs/ask_astro/answers/980215c.html
Types of Galaxies ... Edwin Hubble divided the galaxies into three basic groups: ellipticals, spirals, and irregulars. The ellipticals are smooth and round or elliptical, the spirals are flat with a spiral pattern in their disk, and the irregulars have stars and gas in random patches.
www.astronomynotes.com/galaxy/s3.htm www.astronomynotes.com/galaxy/s3.htm
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