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a spiral galaxy where our Solar System and Earth are located

Milky Way: The Milky Way is a spiral galaxy where our Solar System and Earth are located.

one of over one hundred billion galaxies in the Universe

The Milky Way is one of over one hundred billion galaxies in the Universe.

a vast spiral, similar to our neighbor the Andromeda galaxy, shown in the photo

The Milky Way is a vast spiral, similar to our neighbor the Andromeda galaxy, shown in the photo.

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a large barred spiral galaxy

Our own galaxy, the Milky Way, sometimes simply called the Galaxy (with uppercase), is a large barred spiral galaxy about 30 kiloparsecs or 100,000 light years in diameter and 3,000 light years in width, contains about 300 billion stars and has a total mass of about a trillion times the mass of the Sun.

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a symmetrical barred spiral galaxy

The Milky Way is a symmetrical barred spiral galaxy and this lends some doubt as to the origins of this phenomenon.

a barred spiral galaxy [type Sb, Sbc, or SB] that has a diameter usually considered to be about 100,000–120,000 light-years but may be 150,000–180,000 light-years

The Milky Way is a barred spiral galaxy [type Sb, Sbc, or SB] that has a diameter usually considered to be about 100,000–120,000 light-years but may be 150,000–180,000 light-years.

a name for the galaxy we live in

The Milky Way is a name for the galaxy we live in.

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an improper name for our galaxy

As an interesting side note, the Milky Way is technically an improper name for our galaxy.

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The picture heading this post

The picture heading this post is the Milky Way, the galaxy in which our Solar System revolves.

a barred spiral galaxy comprising roughly 400 billion stars and stretching between 100,000 and 120,000 light-years in diameter

Appearing as a dazzling band of light in the night sky, the Milky Way is a barred spiral galaxy comprising roughly 400 billion stars and stretching between 100,000 and 120,000 light-years in diameter.