The Milky Way galaxy is a disk about 120,000 light years across.  That is huge!  For perspective, if the Milky Way was as large as the continental United States, our entire solar system would be as big as the period at the end of this sentence.

The Milky Way galaxy is a disk about 120,000 light years across. That is huge! For perspective, if the Milky Way was as large as the continental United States, our entire solar system would be as big as the period at the end of this sentence.

Milky Way NASA | Milky Way Galaxy artwork

Milky Way NASA | Milky Way Galaxy artwork

The Whirlpool Galaxy (M51a, or NGC 5194) is an interacting grand-design spiral galaxy that is estimated to be 23 ± 4 million light-years from the Milky Way in the constellation Canes Venatici. It is one of the most famous galaxies in the sky. The galaxy and its companion (NGC 5195) are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars.

The Whirlpool Galaxy (M51a, or NGC 5194) is an interacting grand-design spiral galaxy that is estimated to be 23 ± 4 million light-years from the Milky Way in the constellation Canes Venatici. It is one of the most famous galaxies in the sky. The galaxy and its companion (NGC 5195) are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars.

Twitter / Aki_Hoshide: Right before capture. ...

Twitter / Aki_Hoshide: Right before capture. ...

the milky way galaxy

the milky way galaxy

ハッブル望遠鏡 50の傑作画像 その1 | ナショナルジオグラフィック日本版サイト

ハッブル望遠鏡 50の傑作画像 その1 | ナショナルジオグラフィック日本版サイト

Antennae Galaxies

Antennae Galaxies

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野口(@Astro_Soichi)さんがアップされてた写真

We've never actually seen the Milky Way like this.  We can’t take a picture of the Milky Way from above because we are inside the galactic disk, about 26,000 light years from the galactic center. This means that any pretty pictures you see of a spiral galaxy with elegant arms that is supposedly the Milky Way is either a picture of another spiral galaxy, or the rendering of a talented artist.

We've never actually seen the Milky Way like this. We can’t take a picture of the Milky Way from above because we are inside the galactic disk, about 26,000 light years from the galactic center. This means that any pretty pictures you see of a spiral galaxy with elegant arms that is supposedly the Milky Way is either a picture of another spiral galaxy, or the rendering of a talented artist.

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宇宙ニュース:テレビ東京

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