Jisho

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銀河群
Wikipedia definition
1. Hickson Compact GroupA Hickson Compact Group is a collection of galaxies designated as published by Paul Hickson in 1982. The most famous group on Hickson’s list of 100 objects is HCG 92, Stephan's Quintet. According to Hickson: “Most compact groups contain a high fraction of galaxies having morphological or kinematical peculiarities, nuclear radio and infrared emission, and starburst or active galactic nuclei (AGN) activity. They contain large quantities of diffuse gas and are dynamically dominated by dark matter.
Read “Hickson Compact Group” on English Wikipedia
Read “ヒクソン・コンパクト銀河群” on Japanese Wikipedia
Read “Hickson Compact Group” on DBpedia

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