what if (on colliding galaxies)

On Aug 5, 4:28 pm, "Painius" wrote:
"G=EMC^2 Glazier" wrote...

in ...



`Scott Very nice post I agree with it I never started this post with
the meaning that stars had to hit one another,for that has to be a very
rare event. Since I am always bringing in gravity to evolve all that is
I have to consider these two galaxies have massive black holes and that
could be the big rub. All my pictures in my universe picture scrape book
were taken by the Hubble. I know shock wave is used to describe the
aftermath of a supernova explosion but looking at the Cartwheel galaxy
that word shock wave jumped into my mind. Scott what would have been a
better word? The right terminology can be tricky. I find
galaxies colliding very interesting. With billions and billions of large
galaxies it can not be all that rare. If you have more information on
them please post. Your virtual friend Bert PS good reason for us
being friends Scott is we both love astronomy Right Painius

Right, Bert!

I L O V E T H I S U N I V E R S E


Since the known universe is at least 100 billion years old, which
galaxy encounter and subsequent interaction/collision did our Milky
Way most recently survive from?

~ Brad Guth Brad_Guth Brad.Guth BradGuth

In article
,
BradGuth wrote:

Since the known universe is at least 100 billion years old,

13.73 billion years
http://www.universetoday.com/2008/03...the-most-accur
ate-measurement-of-the-age-of-the-universe-yet/


which
galaxy encounter and subsequent interaction/collision did our Milky
Way most recently survive from?

It's not specifically known.

I'm sure Wikipedia has a good start on the research you could do on this
subject:
http://en.wikipedia.org/wiki/Galaxy_...nitude_diagram

"In recent years, a great deal of focus has been put on understanding
merger events in the evolution of galaxies. Our own galaxy (the Milky
Way) has a tiny satellite galaxy (the Sagittarius Dwarf Elliptical
Galaxy) which is currently gradually being ripped up and "eaten" by the
Milky Way, it is thought these kinds of events may be quite common in
the evolution of large galaxies. The Sagittarius dwarf galaxy is
orbiting our galaxy at almost a right angle to the disk. It is currently
passing through the disk; stars are being stripped off of it with each
pass and joining the halo of our galaxy."


http://en.wikipedia.org/wiki/Milky_Way

"Recent discoveries have added dimension to the knowledge of the Milky
Way's structure. With the discovery that the disc of the Andromeda
Galaxy (M31) extends much further than previously thought,[26] the
possibility of the disk of our own Galaxy extending further is apparent,
and this is supported by evidence of the newly discovered Outer Arm
extension of the Cygnus Arm.[27] With the discovery of the Sagittarius
Dwarf Elliptical Galaxy came the discovery of a ribbon of galactic
debris as the polar orbit of Sagittarius and its interaction with the
Milky Way tears it apart. Similarly, with the discovery of the Canis
Major Dwarf Galaxy, it was found that a ring of galactic debris from its
interaction with the Milky Way encircles the galactic disk.

"On January 9, 2006, Mario Juri and others of Princeton University
announced that the Sloan Digital Sky Survey of the northern sky found a
huge and diffuse structure (spread out across an area around 5,000 times
the size of a full moon) within the Milky Way that does not seem to fit
within current models. The collection of stars rises close to
perpendicular to the plane of the spiral arms of the Galaxy. The
proposed likely interpretation is that a dwarf galaxy is merging with
the Milky Way. This galaxy is tentatively named the Virgo Stellar Stream
and is found in the direction of Virgo about 30,000 light-years away."

I found this cool site...
http://galaxymap.org/drupal/node/27

--
Timberwoof me at timberwoof dot com http://www.timberwoof.com
Official naysayer of the DARPA kind, who knows only of what¹s accepted by
the Old Testament of the Zionist/Nazi New World Order
which refuses to accept or allow deductive reasoning.

Brad Milky Way does not look like it ever merged with another
galaxy,but look out Here comes Anromeda Its bigger and if they hit
face on that will create a shockwave(for lack of a better word) Bert

"Timberwoof" wrote in message...
...
In article
,
"Painius" wrote:
"Timberwoof" wrote...
in message
...

. . .
How far apart are stars on the average? Several light-years? The 100 AU
number is out of your ass, like most things you say.

1 AU = distance of Earth from Sun

100 AU = .00158128588 light years

100 AU = 9,295,588,762 miles

100 AU = 14,959,800,000 kilometers

Thank you, Pain. That was informative, but you missed the point. "100 AU
= .00158128588 light years" was the most important part of your highly
accurate reply. (But we really don't need that much accuracy for this
back-of-the-envelope calculation.) If 100 AU ~ .001 LY, then 1000 AU ~
.01 LY, 10,000 AU = .1 LY, and 100,000 AU = 1 LY. The nearest star is 4
LY away, so 10 LY is the right order of magnitude for typical star
distances. That's roughly a million AU between stars.
How big is a grain of sand? A tenth of a millimeter? That makes it 10^-4
m. So the nearest grain of sand would be ~ 10^2 m or a hundred meters
away.

Let's say you had a football field with golf balls spread in a grid
roughly a hundred meters apart. That would let you put, oh, one golf
ball in the football field. (And that golf ball isn't even to scale; I
just want you to be able to see it!) Now you get to drop, oh, one golf
ball from anywhere in the ceiling overhead ... It's not very likely that
the golf ball is going to hit the other one, or even come close.

I suppose one could calculate the likelihood of a hundred stars
colliding out of the hundreds of millions in as typical galaxy. Yeah,
I'd bet my life on it. That is, yeah, if the only planet I could find
that supported my kind of life was in a galaxy that was undergoing
collision with another one, I'd move there anyway.

Now... the question of whether stars got close enough to one another to
seriously mess up their orbits is something else entirely. That's quite
likely to happen! And that's what makes galactic collisions so
interesting to watch.

You're welcome, TW. It sounded to me like Brad was
asking Miller what might be the "collateral damage" if
a star from a colliding galaxy came within 100 AU or
within even 10 AU. And then you asked what the usual
or average distance was. So it sounded to me as if you
had missed the point of Brad's question, and you were
not quite clear on what an AU is. Apparently i was not
correct about the latter.

I think that a 10x Sunmass star would wreak havoc at
a passing of 100 AU and destroy us all at a passing of
10 AU. Even without putting a little scratch on the Sun.

Yet i agree with you and the experts on this. As for any
direct collisions between stars, out here in the sparse
regions of the arms there would be little or no chance
of it. Closer in toward the center where the stars are a
whole lot more densely packed would be the likely area
of material collisions of stars.

happy days and...
starry starry nights!

--
Indelibly yours,
Paine Ellsworth

P.S.: Thank YOU for reading!

P.P.S.: http://painellsworth.net

"BradGuth" wrote in message...
...
On Aug 5, 4:28 pm, "Painius" wrote:
"G=EMC^2 Glazier" wrote...
in ...

`Scott Very nice post I agree with it I never started this post with
the meaning that stars had to hit one another,for that has to be a very
rare event. Since I am always bringing in gravity to evolve all that
is
I have to consider these two galaxies have massive black holes and that
could be the big rub. All my pictures in my universe picture scrape
book
were taken by the Hubble. I know shock wave is used to describe the
aftermath of a supernova explosion but looking at the Cartwheel galaxy
that word shock wave jumped into my mind. Scott what would have been a
better word? The right terminology can be tricky. I find
galaxies colliding very interesting. With billions and billions of
large
galaxies it can not be all that rare. If you have more information on
them please post. Your virtual friend Bert PS good reason for us
being friends Scott is we both love astronomy Right Painius

Right, Bert!

I L O V E T H I S U N I V E R S E

Since the known universe is at least 100 billion years old, which
galaxy encounter and subsequent interaction/collision did our Milky
Way most recently survive from?

If i had to hazard a guess, Brad, i'd say the most
recent would be from a small satellite galaxy of the
Milky Way galaxy. And it might just still be taking
place according to TW's research.

And may i ask, if you think that the evidence points
to the Universe being 100 billion years old, how do
you think it originated, was "born", at that time so
long ago? Was it still by a "Big Bang"?

happy days and...
starry starry nights!

--
Indelibly yours,
Paine Ellsworth

P.S.: Thank YOU for reading!

P.P.S.: http://painellsworth.net

It WON'T be face on, BEERTbrain! lmao!

Saul Levy


On Wed, 6 Aug 2008 07:29:44 -0400, (G=EMC^2
Glazier) wrote:

Brad Milky Way does not look like it ever merged with another
galaxy,but look out Here comes Anromeda Its bigger and if they hit
face on that will create a shockwave(for lack of a better word) Bert

Cactus saul I cant argue how Andromeda and Milky Way will hit. Since
you feel head on is wrong give me your reason for that Bert

"BradGuth" wrote in message
...

You get a real kick out of intentionally tormenting and traumatizing
trillions upon trillions of mostly innocent souls, don't you. You
must be another DARPA Zionist/Nazi, cloaked as a born-again
Republican.

~ Brad Guth Brad_Guth Brad.Guth BradGuth

Here's what I get a kick out of: I get a real kick out of people who
consistently blame everyone and/or everything else but themselves for their
woes. As for the other, I must be a die-hard democrat. There is nothing
more important to me than freedom, especially freedom of choice!

--
Truth & Light

On Aug 6, 4:29 am, (G=EMC^2 Glazier) wrote:
Brad Milky Way does not look like it ever merged with another
galaxy,but look out Here comes Anromeda Its bigger and if they hit
face on that will create a shockwave(for lack of a better word) Bert

Is there any chance of a retrograde encounter?

If so, what's the worse case of closing velocity?

What's the combined or mutual tidal radius of Andromeda and Milky Way?

~ Brad Guth Brad_Guth Brad.Guth BradGuth

On Aug 7, 6:06 am, (G=EMC^2 Glazier) wrote:
Cactus saul I cant argue how Andromeda and Milky Way will hit. Since
you feel head on is wrong give me your reason for that Bert

The Zionist/Nazis and their brown-nosed rabbi like Saul don't require
reason.

~ Brad Guth Brad_Guth Brad.Guth BradGuth