The Hubble Telescope Images a Magnificent Galaxy With “Flocculent” Spiral Arms

In summary, the conversation discussed the term "flocculent" and its meaning, as well as the direction of rotation of a galaxy based on the positions of its spiral arms. It was also mentioned that the density wave theory can explain the presence of spiral arms in galaxies.
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Spinnor
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Had to Google Flocculent,

1593479433072.png


adjective

  1. having or resembling tufts of wool.
    "the first snows of winter lay thick and flocculent"
    • having a loosely clumped texture.
      "a brown flocculent precipitate"

https://scitechdaily.com/birds-of-a...gnificent-galaxy-with-flocculent-spiral-arms/
 
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  • #2
Nice! Great image from HST!
 
  • #3
I knew the term flocculent; I even know a mnemonic to help remember the definition.
sheep cluster in flocks → wool comes from sheep ⇒ flocculent refers to wooly.

Generally, I expect astronomical structures like the solar system and our galaxy to rotate counter-clockwise (CCW) as pictured from 'above' the plane of the elliptic. Looking at the beautiful HST picture, I cannot determine which direction this galaxy rotates.

Do we know which direction this galaxy rotates based, perhaps, on the positions of the spiral arms? Thanks and pardon if off topic.
 
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1. What is the Hubble Telescope?

The Hubble Telescope is a large space telescope that was launched into orbit by NASA in 1990. It is named after American astronomer Edwin Hubble and is known for its ability to capture high-resolution images of deep space.

2. What is the significance of the Hubble Telescope images of the "Flocculent" galaxy?

The "Flocculent" galaxy, also known as NGC 4414, is a prime example of a spiral galaxy with distinct spiral arms. The Hubble Telescope's images of this galaxy provide valuable insight into the formation and evolution of spiral galaxies, as well as the structure and dynamics of their spiral arms.

3. How does the Hubble Telescope capture images of deep space?

The Hubble Telescope uses a combination of mirrors, lenses, and advanced imaging technology to capture light from distant objects in space. It is able to capture images in visible, ultraviolet, and infrared light, providing a comprehensive view of the universe.

4. What does "flocculent" mean in the context of the galaxy's spiral arms?

In astronomy, "flocculent" refers to a type of spiral arm pattern in galaxies. It describes a spiral arm structure that appears fuzzy or patchy, rather than tightly wound. This type of pattern is thought to be caused by the gravitational interactions between stars and gas within the galaxy.

5. How do Hubble Telescope images contribute to our understanding of the universe?

The Hubble Telescope's high-resolution images have greatly expanded our knowledge of the universe. They have allowed us to study distant galaxies, supernovae, and other astronomical phenomena in detail, providing valuable insights into the origins and evolution of the universe. These images also serve as a source of inspiration and wonder for people all over the world.

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