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#1
December 30th 03, 01:49 PM
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Where does the galaxy end?
Just a thought but...from our galaxy I think we can see a few others,
Andromeda springs to my ignorant mind. I bleive the nearest is thousand light years and the furthest a few million. But... If I built a ship and started off to Andromeda, how would I know when I had left the Milky Way? I understand that the edge of the solar system is defined by lack of solar wind etc, but the galaxy? David 
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#2
December 30th 03, 01:58 PM
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david nous a écrit :
Just a thought but...from our galaxy I think we can see a few others, Andromeda springs to my ignorant mind. I bleive the nearest is thousand light years and the furthest a few million. But... You could multiply the distances by 1000, at least  If I built a ship and started off to Andromeda, how would I know when I had left the Milky Way? I understand that the edge of the solar system is defined by lack of solar wind etc, but the galaxy? I think that the border is surely not well defined, in particular when you look at the dwarf satellite galaxies which can intrude into the Milky Way as they orbit around it. -- Norbert. (no X for the answer) ====================================== knowing the universe - stellar and galaxies evolution http://nrumiano.free.fr images of the sky http://images.ciel.free.fr ======================================
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#3
December 30th 03, 03:19 PM
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#4
December 30th 03, 08:40 PM
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"Craig Oldfield" wrote in message news:MPG.1a5ba7c5f1e28e31989d98@localhost... In article , burbled happily... If I built a ship and started off to Andromeda, how would I know when I had left the Milky Way? The sign that says "You are now leaving The Milky Way, please call again" -- Craig Oldfield LOL!! David
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#5
December 31st 03, 12:01 AM
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"david" wrote in message
... Just a thought but...from our galaxy I think we can see a few others, Andromeda springs to my ignorant mind. I bleive the nearest is thousand light years and the furthest a few million. But... If I built a ship and started off to Andromeda, how would I know when I had left the Milky Way? I understand that the edge of the solar system is defined by lack of solar wind etc, but the galaxy? David Simple really, you would know by there being no stars in front of you within 1000 ly. - Michael
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