銀河団ガスから受ける強烈な“向かい風” ハッブル宇宙望遠鏡が観測した「NGC 4522」
イメージ こちらは、ハッブル宇宙望遠鏡が観測した渦巻銀河「NGC 4522」。おとめ座の方向、地球から約6000万光年先にあります。 渦巻銀河といえば、明るい中心部を取り囲む渦巻腕（渦状腕）が円盤状に渦巻く姿が特徴の銀河です。とこ…
出典：sorae
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