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Andrew Johnson was the 17th president after Abraham Lincon.
The answer is condensation , your welcome
Large groups of galaxy clusters that appear in sheetlike and threadlike shapes are known as superclusters. These are a cluster of galaxies which themselves occur as clusters as well. One example is the Virgo supercluster. It is a mass concentration of galaxies that contains the Virgo Cluster.
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The image represents an open star cluster.
Open star clusters are groups of stars formed from the same molecular cloud, generally asymmetric (without structure).
An important characteristic of this type of cluster is that all its stars have the same age and similar chemical composition. In addition, they are linked to each other gravitationally, but to a lesser extent than those of globular clusters.
The stars hosted by these clusters tend to be young, massive and very hot.
Among this group are the Pleiades (represented in the image), located in the constellation of Taurus.
