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Date : 1991-09-18
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Galaxy Wikipedia ~ Galaxies range in size from dwarfs with just a few hundred million 10 8 stars to giants with one hundred trillion 10 14 stars each orbiting its galaxys center of mass Galaxies are categorized according to their visual morphology as elliptical spiral or irregular
Galaxies—facts and information Science ~ Galaxies explained Galaxies are sprawling systems of dust gas dark matter and anywhere from a million to a trillion stars that are held together by gravity Nearly all large galaxies
Galaxies Science Mission Directorate ~ Galaxies Our galaxy the Milky Way is typical it has hundreds of billions of stars enough gas and dust to make billions more stars and at least ten times as much dark matter as all the stars and gas put together And it’s all held together by gravity Like more than twothirds of the known galaxies the Milky Way has a spiral shape
List of galaxies Wikipedia ~ The first attempts at systematic catalogues of galaxies were made in the 1960s with the Catalogue of Galaxies and Clusters of Galaxies listing 29418 galaxies and galaxy clusters and with the Morphological Catalogue of Galaxies a putatively complete list of galaxies with photographic magnitude above 15 listing 30642
galaxy Formation Types Properties Facts Britannica ~ Galaxy any of the systems of stars and interstellar matter that make up the universe Many such assemblages are so enormous that they contain hundreds of billions of stars Whirlpool Galaxy M51 NGC 5195 The Whirlpool Galaxy left also known as M51 an Sc galaxy accompanied by a small irregular companion galaxy NGC 5195 right
Galaxies NASA ~ Galaxies A galaxy is a large group of stars gas and dust bound together by gravity Our solar system resides in the Milky Way galaxy a spiral galaxy that is part of a group of galaxies called the Local Group
Galaxies Collisions Types and How Theyre Made Space ~ Galaxies dont float through space in isolation but are bunched together in groups known as clusters Some clusters are large containing over a thousand galaxies while others are much smaller
Galaxies NASA ~ Galaxies NASA
What Is a Galaxy NASA Space Place – NASA Science for Kids ~ A galaxy is a huge collection of gas dust and billions of stars and their solar systems all held together by gravity We live on a planet called Earth that is part of our solar system But where is our solar system It’s a small part of the Milky Way Galaxy
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