NGC 474 is more than twice the size of the Milky Way Galaxy, which has a 100,000 light-year diameter stellar disk. Although it is classified as an elliptical galaxy which is typically smooth and ...
NGC474は、直径10万光年の天の川銀河(銀河系)と比べて2倍以上大きな銀河です。楕円銀河に分類されますが、のっぺりとして構造が見られない通常の楕円銀河と異なり、弧を描いたような ...