Count Iblis
- 1,858
- 8
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.
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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