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Our Milky Way Neighborhood : 50 Light Years


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#1    Tau Ceti Xeta

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Posted 19 July 2013 - 07:12 PM

This 3D View of our Milky Way Galaxy is just a 50 Light Year Snapshot.

Our sun is a " rim star ".

http://www.atlasofth....com/50lys.html

Database is at the bottom of the webpage. Can you find all of the G2V Stars?

galactic-small.jpg

Earth is on the Orion Arm.

There is a massive black hole at the center of our galaxy.

As far as Extraterrestrial Life, it looks like Alpha Centauri B is the closest.

I guess i should throw in a Stellarium link so you can plot your course relative to Earth.

http://www.stellarium.org

Edited by Tau Ceti Xeta, 19 July 2013 - 08:06 PM.


#2    Fat Cat

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Posted 19 July 2013 - 07:37 PM

Really puts things in perspective.  We are so insignificant in the grand scheme of things.  In addition, while I don't believe we are being visited by extraterrestrial being, there has to be many planets teeming with life in our galaxy alone.


#3    scowl

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Posted 19 July 2013 - 07:38 PM

View PostTau Ceti Xeta, on 19 July 2013 - 07:12 PM, said:

As far as Extraterrestrial Life, it looks like Alpha Centauri B is the closest.

As for star systems, Alpha Centauri is indeed the closest.

As far as extraterrestrial life, that is completely unknown.


#4    Tau Ceti Xeta

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Posted 19 July 2013 - 07:39 PM

View Postphantasia, on 19 July 2013 - 07:37 PM, said:

Really puts things in perspective.  We are so insignificant in the grand scheme of things.  In addition, while I don't believe we are being visited by extraterrestrial being, there has to be many planets teeming with life in our galaxy alone.

100,000 Light Years from edge to edge

Teaming with life?  Human or other?


#5    Sheyenne Rainstorm

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Posted 19 July 2013 - 07:40 PM

Hi Tau you say that Earth is on the Orion Arm what do you mean exactly? Also how do you know that Alpha Centauri B has life on it?

Thanks!


#6    scowl

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Posted 19 July 2013 - 07:41 PM

View Postphantasia, on 19 July 2013 - 07:37 PM, said:

In addition, while I don't believe we are being visited by extraterrestrial being, there has to be many planets teeming with life in our galaxy alone.

Since life on Earth required a series of extremely unlikely circumstances, it's equally possible that that are no other planets with life in our galaxy.


#7    Tau Ceti Xeta

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Posted 19 July 2013 - 07:43 PM

View Postscowl, on 19 July 2013 - 07:38 PM, said:

As for star systems, Alpha Centauri is indeed the closest.

As far as extraterrestrial life, that is completely unknown.

It looks like the Proper Name is: Rigil Kentaurus

4.4 Light Years

What's wrong with Alpha Centauri?  It sounds better.


#8    Tau Ceti Xeta

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Posted 19 July 2013 - 07:47 PM

View Postscowl, on 19 July 2013 - 07:41 PM, said:

Since life on Earth required a series of extremely unlikely circumstances, it's equally possible that that are no other planets with life in our galaxy.

No other planets with life?  Look how HUGE the Milky Way Galaxy is!

However, water appears to be hard find. You also better throw in a protective magnetosphere or the planet is doomed to look

like Mars.  It gets blasted by solar wind with no shield. :cry:


#9    Tau Ceti Xeta

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Posted 19 July 2013 - 07:53 PM

View PostSheyenne Rainstorm, on 19 July 2013 - 07:40 PM, said:

Hi Tau you say that Earth is on the Orion Arm what do you mean exactly? Also how do you know that Alpha Centauri B has life on it?

Thanks!

Click on the picture i have attached at the top. Earth is at around 7 o'clock on that picture.

Our solar system is located on the Orion Arm and our solar system orbit is at a 60 degree angle relative to the galaxy.

It looks like we have a cool bar at the center of our galaxy.


#10    Spacenut56

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Posted 19 July 2013 - 07:53 PM

View Postscowl, on 19 July 2013 - 07:41 PM, said:

Since life on Earth required a series of extremely unlikely circumstances, it's equally possible that that are no other planets with life in our galaxy.
Your opinion, but I would disagree, and say life is very possible in our galaxy. We just don't know yet. But we soon will. Call me an optimist.


#11    Tau Ceti Xeta

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Posted 19 July 2013 - 07:56 PM

View PostSpacenut56, on 19 July 2013 - 07:53 PM, said:

Your opinion, but I would disagree, and say life is very possible in our galaxy. We just don't know yet. But we soon will. Call me an optimist.

Life is very possible?  Human or Other?


#12    Spacenut56

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Posted 19 July 2013 - 07:57 PM

View PostTau Ceti Xeta, on 19 July 2013 - 07:12 PM, said:

This 3D View of our Milky Way Galaxy is just a 50 Light Year Snapshot.

Our sun is a " rim star ".

http://www.atlasofth....com/50lys.html

Database is at the bottom of the webpage. Can you find all of the G2V Stars?

Attachment galactic-small.jpg

Earth is on the Orion Arm.

There is a massive black hole at the center of our galaxy.

As far as Extraterrestrial Life, it looks like Alpha Centauri B is the closest.
Very cool. Thank you.


#13    scowl

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Posted 19 July 2013 - 08:03 PM

View PostTau Ceti Xeta, on 19 July 2013 - 07:47 PM, said:


No other planets with life?  Look how HUGE the Milky Way Galaxy is!

Yes, no other planets with life. Look at how many things had to happen PERFECTLY at JUST THE RIGHT TIME for life to not only appear on Earth but also not to be destroyed several times over. As you multiply the likelihood of all these things happening, you end up with a very VERY large and depressing number, and those are just the things we more or less know about.

There may be trillions of stars with no life around them. If life did appear on another planet it's most likely that it died off without leaving a trace.


#14    Sheyenne Rainstorm

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Posted 19 July 2013 - 08:07 PM

View PostTau Ceti Xeta, on 19 July 2013 - 07:53 PM, said:

Click on the picture i have attached at the top. Earth is at around 7 o'clock on that picture.

Our solar system is located on the Orion Arm and our solar system orbit is at a 60 degree angle relative to the galaxy.

It looks like we have a cool bar at the center of our galaxy.

That is awesome! I was looking at the link to begin with that is why I was confused! :tu: Also about the life on Alpha Centauri B what makes you certain life is on there?

Thanks!


#15    scowl

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Posted 19 July 2013 - 08:10 PM

View PostSpacenut56, on 19 July 2013 - 07:53 PM, said:

Your opinion, but I would disagree, and say life is very possible in our galaxy. We just don't know yet. But we soon will. Call me an optimist.

Why on Earth (literally) would you think we'll know soon?

The more you learn about life on Earth, the more you realize that life is an extremely extraordinary occurrence in our universe. All the laws of physics and chemistry are against it happening. If you want to remain an optimist, I strongly recommend you avoid learning anything about how life on Earth (may have) happened.

View PostSheyenne Rainstorm, on 19 July 2013 - 08:07 PM, said:

Also about the life on Alpha Centauri B what makes you certain life is on there?

Because that would be the most convenient location for us on Earth?





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