New Arm for Milky Way

[heliopause]

http://www.cnn.com/2003/TECH/space/12/16/milkyway.boundary.reut/index.html

Can somebody explain this to me? How did they come to this conclusion.?

[dgruss23]

NGC 3992 (M109) (http://www.astroimager.com/images2/m109001.jpg) is a galaxy that is very similar to what the Milky Way would look like if we could get outside it to snap a picture. Our galaxy is generally thought to be an SBbc spiral where the "B" means barred.

Notice in the image linked to that there are outer arms and 4 arms coming out from the center.

[tofu]

Do you ever wonder if there are people in those galaxies looking back at the Milky Way saying things like "yeah, there's a great example of a barreled spiral with a small satellite galaxy." Maybe we are on the cover of some astronomy magazine somewhere.

[dgruss23]

Do you ever wonder if there are people in those galaxies looking back at the Milky Way saying things like "yeah, there's a great example of a barreled spiral with a small satellite galaxy." Maybe we are on the cover of some astronomy magazine somewhere.

I'd like a subscription to that magazine! :D

[Glom]

Maybe this gas is c-regulator.

[Tensor]

Maybe this gas is c-regulator.

:o :lol:

[Kebsis]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

[freddo]

Maybe this gas is c-regulator.

What's the speed limit on it... :wink:

[wtgmatt]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

Our galaxy, looked at side-on, is about 100,000 ly (light years) wide, and 3,000 ly tall (in the middle at the nucleus). There is also a halo around the nucleus consisting of globular clusters with a radius of about 50,000 ly.

We're about 30,000 ly from the center, located in the Orion arm of the galaxy. http://www.anzwers.org/free/universe/galaxy.html has some cool pictures.

[Tensor]

Maybe this gas is c-regulator.

What's the speed limit on it... :wink:

That would depend on if it is inside the galaxy or in one of areas that doesn't have any stuff in it. Of course, if a frozen chicken embryo is moving fast enough, then it will be next week where the is no stuff. I'd work out the math for you, but who needs it. I know what I say is right because I got the idea from the translation of the original Basque that I retranslated back into Basque so I could do my own translation. :wink: #-o

[freddo]

:lol: :lol: :lol: :lol: :lol: :lol:

Let's do away with math altogether, and explain complicated concepts in words alone.

Even Galileo couldn't do it!

[Evil_Bomber]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

I believe we're "Far out in the uncharted backwaters of the unfashionable end of the Western Spiral Arm of the Galaxy" :)

[Diamond]

:lol: :lol: :lol: :lol: :lol: :lol:

Let's do away with math altogether, and explain complicated concepts in words alone.

Even Galileo couldn't do it!

[-X

Without mathematics, how will we continue to bamboozle the public about Relativity as we have done for the past 98 years? :-k

[MAPNUT]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

Do we know whereabouts in the Universe our galaxy is? Do we have any idea where the center of the universe is?

[heliopause]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

Do we know whereabouts in the Universe our galaxy is? Do we have any idea where the center of the universe is?

In Boston, at the intersection of Brookline Ave, Landsdowne St, and Yawkey Way.

[tofu]

I'd like a subscription to that magazine! :D
Sure. I'll transmit your subscription request today. They should recieve it in about 2.2 million years. There will be a short processing delay. You understand, I'm sure. You'll get your first issue about 2.2 million years after that. If you're lucky, you'll get it just in time for Christmas 4,402,003 AD!

Actually, this raises an interesting issue. I wonder if SETI has considered listening to nearby galaxies in addition to stars. It would be interesting, to say the least, to find a transmission containing an image of the milky way millions of years ago.

[freddo]

Without mathematics, how will we continue to bamboozle the public about Relativity as we have done for the past 98 years?

Easy - do like Kebsis suggested...

Use a translation of a translation of a translation!!! No meaningful words will survive! =D>

[Musashi]

That would depend on if it is inside the galaxy or in one of areas that doesn't have any stuff in it. Of course, if a frozen chicken embryo is moving fast enough, then it will be next week where the is no stuff. I'd work out the math for you, but who needs it. I know what I say is right because I got the idea from the translation of the original Basque that I retranslated back into Basque so I could do my own translation.

=D>

Beautiful. Actually, I translate all of the posts I make into Arabic, and then into Manx, and from there back into English. Not that I speak any of those alnguages (except English, sorta), I just use bablefish. It at least explains why I confuse people sometimes. Apparently in trranslation from Arabic to Manx, Freddo becomes Archer....

[Kebsis]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

Do we know whereabouts in the Universe our galaxy is? Do we have any idea where the center of the universe is?

I'm no expert. So take this with that in mind.

Anywhere in the universe you are, it will always appear as if you are in the center of it. We live in the frontier of an expanding spacetime, and the true 'center' would be somewhere outside of spacetime.

The analogy I see used most often sorta explains it. Imagine that the universe is a slowly expanding balloon, with dots on it. Imagine that you can't see the rubber of the balloon, just the dots. Now, figure that you were standing on the inside of one of these dots, looking at the other dots as the balloon gets larger and larger. It looks like you're standing in the center and all the other dots are expanding away from you, right? And regardless of which dot you're standing on, it will always look like you are in the center of the universe.

Hopefully this gives you some idea, there are others here who can go into better detail than I if you are interested.

[ZaphodBeeblebrox]

Do we know whereabouts in the galaxy our solar system is? Like near the center, or closer to the outermost regions?

I believe we're "Far out in the uncharted backwaters of the unfashionable end of the Western Spiral Arm of the Galaxy" :)

Great!

Just give those Stinkin' Vogons our Address, why don'tcha? [-X

[freddo]

Apparently in trranslation from Arabic to Manx, Freddo becomes Archer....

:lol: :lol:

A frog with an arrow... Scary thought. :o

[Archer17]

Apparently in trranslation from Arabic to Manx, Freddo becomes Archer....

:lol: :lol:

A frog with an arrow... Scary thought. :oI agree! I quiver at the concept :D

[Musashi]

Not another pun thread... stay on target!

[freddo]

Argh!! Looks like another pun thread coming on!!! :o

I'm gonna bow out...

[dgruss23]

Ok, holster those arrow jokes ... oops wrong type of weapon pun. Look, what I'm trying to say is your tanking this thread. Your puns really bomb and you're shafting the person that started the thread.

[Archer17]

Ok, holster those arrow jokes ... oops wrong type of weapon pun. Look, what I'm trying to say is your tanking this thread. Your puns really bomb and you're shafting the person that started the thread.I think you hit the bullseye here dgruss so I'll draw back from slinging any more puns. I'd hate to see this thread croak because our humor misses the mark.

To redeem myself somewhat:
Do we know whereabouts in the Universe our galaxy is? Do we have any idea where the center of the universe is?Sounds like Kebsis underestimates himself. I did a very quick search and found this (http://curious.astro.cornell.edu/question.php?number=137).

[Launch window]

check out this new clip

A movie of our Galaxy

The data was gathered by
NASA's Rossi X-ray Timing Explorer, launched in 1995. The movie is a product of NASA and MIT. It shows stars seeming to blink in and out of existence, while other sources remain constant.
See the Movie
http://www.space.com/php/multimedia/xray/
Invisible black holes and dense neutron stars turn on and off, or vary over time, as they suck material off companion stars. The on-phases, powered by gas under extreme gravity, last weeks or months. As the gas spirals inward, it is superheated, causing it to glow with X-ray radiation. Some sources disappear for months at a time in the X-ray view.
Others are steadier but grow brighter and dimmer depending on the flow of fuel.
Blue represents the most energetic X-rays; green, less energetic; and red, the least energetic.
Blue sources are generally very massive, fast-rotating stars called pulsars that feed off companion stars. Red objects are typically lower-mass binary systems. Many of the steady sources are green. One of these, the familiar Crab pulsar, is at the far right.
The Sun is shown as a white circle moving through the scene.
The bright source in the center above the galactic plane is Scorpius-X1, the first X-ray source ever detected in the galaxy. Scientists think it is a neutron star.

some other threads on our Galaxy and high energy Xray

Second black hole in Milky Way
http://www.bautforum.com/showthread.php?p=298638#post298638
gamma rays in the centre of our Galaxy
http://www.bautforum.com/showthread.php?t=10350
milkyway xray mystery ?
http://www.bautforum.com/showthread.php?t=12146
ESO's Telescopes super star cluster in our Galaxy
http://www.bautforum.com/showthread.php?t=17111
Most Luminous Star in the Milky Way
http://www.bautforum.com/showthread.php?t=1128




NASA's Rossi X-Ray Timing Explorer was also recently in the news with this
http://www.universetoday.com/am/publish/event_horizon_measured.html?1012006
Event Horizon Measured

[ToSeek]

check out this new clip

A movie of our Galaxy

The data was gathered by
NASA's Rossi X-ray Timing Explorer, launched in 1995. The movie is a product of NASA and MIT. It shows stars seeming to blink in and out of existence, while other sources remain constant.
See the Movie
http://www.space.com/php/multimedia/xray/
Invisible black holes and dense neutron stars turn on and off, or vary over time, as they suck material off companion stars. The on-phases, powered by gas under extreme gravity, last weeks or months. As the gas spirals inward, it is superheated, causing it to glow with X-ray radiation. Some sources disappear for months at a time in the X-ray view.
Others are steadier but grow brighter and dimmer depending on the flow of fuel.
Blue represents the most energetic X-rays; green, less energetic; and red, the least energetic.
Blue sources are generally very massive, fast-rotating stars called pulsars that feed off companion stars. Red objects are typically lower-mass binary systems. Many of the steady sources are green. One of these, the familiar Crab pulsar, is at the far right.
The Sun is shown as a white circle moving through the scene.
The bright source in the center above the galactic plane is Scorpius-X1, the first X-ray source ever detected in the galaxy. Scientists think it is a neutron star.

Even though you were first with this, it probably deserves its own thread, which may be found here. (http://64.207.216.12/showthread.php?t=37233)

[snabald]

Our galaxy, looked at side-on, is about 100,000 ly (light years) wide, and 3,000 ly tall (in the middle at the nucleus). There is also a halo around the nucleus consisting of globular clusters with a radius of about 50,000 ly.

We're about 30,000 ly from the center, located in the Orion arm of the galaxy. http://www.anzwers.org/free/universe/galaxy.html has some cool pictures.
I was looking at this site you posted, what is with all the voids? It just seems odd.