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atomic7732
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« on: June 28, 2009, 03:54:33 PM »
What is the sun NOW?


Rules: First person to answer gets a point.
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hbmp88

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« Reply #1 on: June 28, 2009, 06:31:55 PM »
A medium sized yellow star at the center of the main sequence.
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atomic7732
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« Reply #2 on: June 29, 2009, 10:14:35 AM »
i'll accept that, but the real answer was a yellow dwarf.  Wink
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Naru523
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butterflies |ˈbətərˌflīs| (n.) A strong desire to screw over the Aeridani Union
« Reply #3 on: June 30, 2009, 10:05:37 PM »
What is the farthest galaxy from the Milky Way?  Wink
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monmarfori
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« Reply #4 on: June 30, 2009, 11:04:03 PM »
Somewhere in the cluster Abell 2218. 13 billion light years away.
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atomic7732
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« Reply #5 on: July 01, 2009, 10:05:03 AM »
I read an article yeasterday in the Astronomy magazine. It's A1689-zD1 we see it as about 3Gly distant but, the light is like from 13Gly, but is currently at 30Gly.

A1689-zD1 at 30Gly

Now... Betelguese is gonna blow soon! How bright will it be (magnitude or reference object)? And can it blind you if look at it?
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monmarfori
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« Reply #6 on: July 01, 2009, 02:06:17 PM »
Betelgeuse will explode in a supernova in the next thousand years.
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Dan Dixon
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« Reply #7 on: July 01, 2009, 08:16:59 PM »
Quote from: monmarfori on July 01, 2009, 02:06:17 PM
Betelgeuse will explode in a supernova in the next thousand years.


Please be careful about making absolute statements that aren't supported by facts.

"Some astronomers believe it may become a supernova within a timeframe where it could be observable by human civilization."
http://en.wikipedia.org/wiki/Betelgeuse

A better way of saying this would be:
Betelgeuse may supernova in the next thousand years.

Edit:
And how awesome is that. It could supernova tomorrow (~640 years ago), but probably not.
« Last Edit: July 01, 2009, 09:58:09 PM by Dan Dixon » Logged
Naru523
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butterflies |ˈbətərˌflīs| (n.) A strong desire to screw over the Aeridani Union
« Reply #8 on: July 03, 2009, 05:05:38 PM »
What is the galaxy's name that it's spiral arm are getting ripped apart from a cluster?
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atomic7732
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« Reply #9 on: July 03, 2009, 05:48:14 PM »
uhhh... nlo clue. i know a small galaxy is ripping and arm away from it's parent, but forgot what it's called.
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