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・ Monoceratuncus peltatus
・ Monoceratuncus tantulus
・ Monocercops
・ Monocercops actinosema
・ Monocercops nepalensis
・ Monocercops resplendens
・ Monocercops thoi
・ Monocercops triangulata
・ Monocerin
・ Monoceromyia
・ Monoceros
・ Monoceros (album)
・ Monoceros (Chinese astronomy)
・ Monoceros (disambiguation)
・ Monoceros (legendary creature)
Monoceros Ring
・ Monocerotesa
・ Monocerotesa proximesta
・ Monocerotesa virgata
・ Monocerotids
・ Monocerotis
・ Monochaetia
・ Monochaetia coryli
・ Monochaetia mali
・ Monochaetum
・ Monochaetum floribundum
・ Monochaetum multiflorum
・ Monochamia
・ Monochamia monochama
・ Monochamus


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Monoceros Ring : ウィキペディア英語版
Monoceros Ring
The Monoceros Ring is a long, complex, ringlike filament of stars that wraps around the Milky Way three times. This is proposed to consist of a stellar stream torn from the Canis Major Dwarf Galaxy by tidal forces as part of the process of merging with the Milky Way over a period of billions of years, although this view has long been disputed. The ring contains 100 million solar masses and is 200,000 light years long.
==Discovery==
The stream of stars was first reported in 2002 by astronomers conducting the Sloan Digital Sky Survey. It was in the course of investigating this ring of stars, and a closely spaced group of globular clusters similar to those associated with the Sagittarius Dwarf Elliptical Galaxy, that the Canis Major Dwarf Galaxy was discovered.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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