NASA 宇宙の記録｜今日の天体写真 (APOD)【みんなの知識ちょっと便利帳】

マゼランの大雲 The Large Cloud of Magellan

⚠️ 特定の写真家による著作物

マゼランとその乗組員は、世界一周の有名な航海中に南の空を研究する十分な時間がありました。その結果、南天の星座であるドラドゥス座とトゥカナ座の間にある2つのぼんやりとした雲のような天体は、現在マゼランの雲として知られています。マゼラン雲は、私たちの銀河系である天の川銀河の衛星である小さな不規則銀河です。上に示した大マゼラン雲（LMC）は、私たちの銀河系に最も近い銀河で、約18万光年の距離にあります。マゼラン雲は、起源がまだ議論の的となっている冷たい水素ガスの流れによって天の川銀河とつながっています。重力レンズと呼ばれる珍しい効果が最近、いくつかのLMCの星で検出され、これが私たちの宇宙の真の構成について重要な情報を提供してくれる可能性があると期待されています。

原文（English）

Magellan and his crew had plenty of time to study the southern sky during their famous voyage around the world. As a result, two fuzzy cloud like objects, nestled among the southern constellations of Doradus and Tucana are now known as the Clouds of Magellan. The Magellanic Clouds are small irregular galaxies, satellites of our larger Milky Way spiral galaxy. The Large Magellanic Cloud (LMC) pictured above is the closest galaxy to our own Milky Way, at a distance of about 180,000 light years. The Magellanic Clouds are joined to the Milky Way by a stream of cold hydrogen gas whose origin is still controversial. An unusual effect called gravitational lensing has recently been detected in a few LMC stars, and there is hope this could tell us important information about the true composition of our universe.

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© Anglo-Australian Telescope Board Explanation: Magellan and his crew had plenty of time to study the southern sky during their famous voyage around the world. As a result, two fuzzy cloud like objects, nestled among the southern constellations of Doradus and Tucana are now known as the Clouds of Magellan. The Magellanic Clouds are small irregular galaxies, satellites of our larger Milky Way spiral galaxy. The Large Magellanic Cloud (LMC) pictured above is the closest galaxy to our own Milky Way, at a distance of about 180,000 light years. The Magellanic Clouds are joined to the Milky Way by a stream of cold hydrogen gas whose origin is still controversial. An unusual effect called gravitational lensing has recently been detected in a few LMC stars, and there is hope this could tell us important information about the true composition of our universe. Tomorrow's picture: The Small Cloud of Magellan | Archive | Glossary | Education | About APOD | Astronomy Picture of the Day (TM) is created and copyrighted in 1995 by Robert Nemiroff and Jerry Bonnell who are solely responsible for its content. / APOD