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渦巻銀河M83 Spiral Galaxy M83
⚠️ 特定の写真家による著作物
この壮大な渦巻銀河M83の画像には、長く曲がりくねった渦状腕がはっきりと写っています。渦状腕が青色に見えるのは、そこに比較的多くの若い青色星が存在するためです。暗い塵の帯が星々に混じり、銀河の渦巻き構造を描き出しています。この銀河には数十億個もの星があり、その光が地球に届くまでには何百万年もかかりました。もし私たちの天の川銀河をM83から見たら、きっとこの画像とよく似た姿になるでしょう。この画像は、アングロ・オーストラリア望遠鏡(AAT)で撮影された画像を公開リストに掲載した8番目の画像です。
原文(English)
Long winding spiral arms are clearly evident on this spectacular picture of the spiral galaxy M83. The blue color of the spiral arms is caused by the relatively large fraction of young blue stars there. Dark dust lanes are mixed in with the stars and trace the spiral structure of the galaxy. This galaxy contains many billions of stars, and its light took many millions of years to reach us. Our own Milky Way Galaxy would appear similar to this if viewed from M83! This picture is number eight on a publicly posted list of images from the Anglo-Australian Telescope (AAT).

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© Anglo-Australian Telescope Board Explanation: Long winding spiral arms are clearly evident on this spectacular picture of the spiral galaxy M83. The blue color of the spiral arms is caused by the relatively large fraction of young blue stars there. Dark dust lanes are mixed in with the stars and trace the spiral structure of the galaxy. This galaxy contains many billions of stars, and its light took many millions of years to reach us. Our own Milky Way Galaxy would appear similar to this if viewed from M83! This picture is number eight on a publicly posted list of images from the Anglo-Australian Telescope (AAT). Tomorrow's picture: Elliptical Galaxy M87 | 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