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The Learning Kingdom's Cool Fact of the Day for April 16, 1999
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What is the most distant object that can be seen without a telescope?
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The nearest major galaxy outside of our own Milky Way Galaxy is the
Andromeda Galaxy, which is 2.5 million light years away. Andromeda
Galaxy is the most distant object that can be seen without a
telescope.
Andromeda Galaxy is so faint that it can only be seen on the darkest
of nights, when the air is very clear. It is a dim smudge of light in
the northern sky, about as wide as the full moon. If viewed with a
good telescope, Andromeda can be seen as a beautiful spiral, tilted at
about a 60 degree angle. It contains hundreds of billions of stars,
but from this great distance they merge into a soft fuzz.
When you look at Andromeda Galaxy, you are seeing light that has been
traveling across empty space for more than two million years. You are
seeing Andromeda Galaxy as it was before the first humans walked on
the planet Earth.
Andromeda Galaxy is one of the most beautiful sights in the sky:
http://antwrp.gsfc.nasa.gov/apod/ap950724.html
Two Cool Facts about the Milky Way Galaxy:
http://www.cool-fact.com/archive/1997/09/08.html
http://www.cool-fact.com/archive/1999/01/12.html
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