How far can your cat see into the universe?

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Discussion Overview

The discussion centers on the visual capabilities of cats, particularly in relation to their ability to see distant galaxies compared to humans. Participants explore the implications of a cat's eye structure and light collection ability on their potential visibility of astronomical objects.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant mentions that a cat's eye can collect about 20 times more light than a human's eye, suggesting this might allow cats to see distant galaxies.
  • Another participant questions whether increased light collection necessarily translates to seeing further, proposing that it might only enhance the width of vision and depend on other factors like ciliary muscles.
  • A third participant agrees that more light improves resolution but clarifies that it does not imply magnification.
  • Another participant notes the unique structure of cat eyes, including a reflective layer behind the retina, and humorously comments on a specific cat's inability to see a nearby threat despite its visual capabilities.

Areas of Agreement / Disagreement

Participants express differing views on whether a cat's ability to collect more light directly correlates with seeing further into the universe. The discussion remains unresolved, with multiple competing perspectives on the implications of light collection and eye structure.

Contextual Notes

Some assumptions about the relationship between light collection and visual distance remain unexamined, and there is a lack of consensus on the role of anatomical features in determining visual capabilities.

Count Iblis
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http://en.wikipedia.org/wiki/List_of_galaxies#List_of_naked-eye_galaxies". M101 is 27 million light years away.

I've read that the eye of a cat can collect about 20 times more light than the eye of a human. Then, given the brightness of the dimmest galaxies that have been seen by humans, that seems to imply that http://www.atlasoftheuniverse.com/galax200.html" should be visible to a cat.
 
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does the fact (presumably) that a cat's eye can collect more light than an eye of a man really mean that a can can see further?
im not the smartest person and pretty new to this forum, but to me it seems that it only makes the cat see wider.
plus, i think it also depends a lot on the ciliary muscles of the eye of cats.
 
yeah good point, more light = better resolution, not magnification. Basic microscope concepts.
 
Cat's eyes have a "mirror" behind the retina to reflect light back into the light sensor cells. See
http://www.agarman.dial.pipex.com/bco/fact4.htm
Our neighbor's cat maybe could see galaxies, but she didn't see the coyote that got her last night. She wasn't the smartest cat on the block.
 
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