Eagle Nebular ???

Its size I'm told is 50 LY,and its about 7,000 LY from me(fine) I look
at it every morning,and always wanted to ask this question. How did it
create such a shape? Why do points,or lumps stick out of this cloud?
Some are very fine features. On its Eagle head top it looks hairy,and
causes light behind to look fuzzy. kind of like looking through a hair
brush. Could we super impose pictures taken at the same angle and see
how the structure of the hydrogen,helium cloud is changing? My mind
keeps telling me nebular clouds should be in the shape of a ball. Not
50 LY long. Even shaped like a frisbee makes more sense.to me Beert

(G=EMC^2 Glazier) wrote in news:20998-4328AA5A-106
@storefull-3336.bay.webtv.net:

Its size I'm told is 50 LY,and its about 7,000 LY from me(fine) I look
at it every morning,and always wanted to ask this question. How did it
create such a shape? Why do points,or lumps stick out of this cloud?

Once massive stars form, they tend to disperse the nearby nebula due to
radiation pressure and high speed "solar winds". The nebula gets sculpted by
the stars it forms. Futher to this, the supermassive stars eventually
detonate as type II supernova, the resulting shock triggering more star
formation.

Klazmon.

"G=EMC^2 Glazier" wrote in message
...
Its size I'm told is 50 LY,and its about 7,000 LY from me(fine) I look
at it every morning,and always wanted to ask this question. How did it
create such a shape? Why do points,or lumps stick out of this cloud?
Some are very fine features. On its Eagle head top it looks hairy,and
causes light behind to look fuzzy. kind of like looking through a hair
brush. Could we super impose pictures taken at the same angle and see
how the structure of the hydrogen,helium cloud is changing? My mind
keeps telling me nebular clouds should be in the shape of a ball. Not
50 LY long. Even shaped like a frisbee makes more sense.to me Beert

"Eagle Nebula" Bert.

"Nebular" is an adjective, "Nebula" is the noun.

On Wed, 14 Sep 2005 18:55:22 -0400
(G=EMC^2 Glazier) wrote:

Its size I'm told is 50 LY,and its about 7,000 LY from me(fine) I look
at it every morning,and always wanted to ask this question. How did
it
create such a shape? Why do points,or lumps stick out of this cloud?
Some are very fine features. On its Eagle head top it looks hairy,and
causes light behind to look fuzzy. kind of like looking through a hair
brush. Could we super impose pictures taken at the same angle and see
how the structure of the hydrogen,helium cloud is changing? My mind
keeps telling me nebular clouds should be in the shape of a ball. Not
50 LY long. Even shaped like a frisbee makes more sense.to me Beert


Hi Bert, there was a very good webcast/talk over at STSci about the
Eagle and the way those clouds are probably formed but I'm damned if I
can remember which one it was.

It would seem it's to do with surrounding stars and the pressure they
exert on the dust clouds. Above the top of a columm there is likely star
formation activity that has 'blown' the dust into that kind of shape.
Also with star formation going on within the dust clouds 'blowing' the
dust about adds to the effect.

Wish I could remember which documentary it was It would be worth
watching again.

Hi Ray I don't have pictures of the Lagoon,or the Trifid Nebula's but
know their rounded shape fits better as to a shape they should conform
to(I would think). I can see how denser areas of gravity can alter
their shapes. The Eagle is just to elongated. I see beauty in all of
them. Their size is very impressive,for I do remember that the Lagoon
was 130 LY in size. Seems if a supernova went of in their middle area
it would alter the shape greatly. I would expect to see a big hole.
(smoke ring) Bert

On Wed, 14 Sep 2005 23:06:24 -0400
(G=EMC^2 Glazier) wrote:

Hi Ray I don't have pictures of the Lagoon,or the Trifid Nebula's but
know their rounded shape fits better as to a shape they should conform
to(I would think). I can see how denser areas of gravity can alter
their shapes. The Eagle is just to elongated. I see beauty in all of
them. Their size is very impressive,for I do remember that the Lagoon
was 130 LY in size. Seems if a supernova went of in their middle area
it would alter the shape greatly. I would expect to see a big hole.
(smoke ring) Bert


Hi Bert, if you go here to the Hublle site, there is a tiny search box
towards the top, type in lagoon or trifid and you will get to some
really good pictures. There are different size files available for
download, some small some large. There's also plenty of great pictures
to be had there. These nebula pictures are some of the most stunning to
view.

http://hubblesite.org/

Hi Ray The Hubble shows those two nebula as rounded,and I like that.
Might throw one of my very old ideas in here(a dart) What nebula do for
the macro realm,Fields do for the micro realm. They create complex
structures. Bert

On Thu, 15 Sep 2005 07:45:14 -0400
(G=EMC^2 Glazier) wrote:

Hi Ray The Hubble shows those two nebula as rounded,and I like that.
Might throw one of my very old ideas in here(a dart) What nebula do
for
the macro realm,Fields do for the micro realm. They create complex
structures. Bert


It's difficult to keep in mind the scale of it when you look at those
images. I wonder what it would look like from a star system within the
cloud or right up close on the edge, might not see much ;-)

I was looking at high resolution pictures of M51 the other day, when you
zoom in real close and look between the arms you can see structure of
the dust clouds that look just like the structure of a shell, well to me
anyway. Rather like macro and micro being similar.

Hi Ray Yes I( have M51 hanging on a wall. It is like looking straight
down into a whirlpool. That'[s even how they named it. With that face-on
view you can also realize why it was one of the first spiral galaxies
identified. Arms of spiral galaxies are interesting. They are the birth
places of new stars so they are blue while the bulge are home to
older,redder stars. The galaxy M74 is interesting because its arms are
more open than any spiral galaxy picture I have ever studied. Getting my
thoughts back to the space between the arms there must be great clouds
with lots of space dust to be responsible for all that defused(smoky)
light. Beert

On Thu, 15 Sep 2005 13:57:06 -0400
(G=EMC^2 Glazier) wrote:

Hi Ray Yes I( have M51 hanging on a wall. It is like looking straight
down into a whirlpool. That'[s even how they named it. With that
face-on
view you can also realize why it was one of the first spiral galaxies
identified. Arms of spiral galaxies are interesting. They are the
birth
places of new stars so they are blue while the bulge are home to
older,redder stars. The galaxy M74 is interesting because its arms
are
more open than any spiral galaxy picture I have ever studied. Getting
my
thoughts back to the space between the arms there must be great clouds
with lots of space dust to be responsible for all that defused(smoky)
light. Beert

Yeah Bert, thanks for pointing out M74 had to look it up, I'm useless at
remembering all these numbers. But again if you zoom in and look closely
between the arms of M74 you can see what look like filaments of dust
stretching between the arms, they are also curved. It just looks like
what one sees in a shell. Not so prominent in M74 but I'm damn sure I
can see it..