Ngc300 - Page 2

Ross G · #21 26-09-2011, 06:14 AM

An amazing galaxy photo Rich.

I love it.

Thanks.

Ross.

iceman (Mike) · #22 26-09-2011, 07:04 AM

That's a beauty, Rich. Lovely galaxy.

madbadgalaxyman (Robert) · #23 26-09-2011, 11:17 AM

Rich,

I am glad I cleared up the identity of the nuclear star cluster in NGC 300.

These objects are interesting because they appear to be similar to globular star clusters, yet they can be quite young, unlike all of our own Galaxy's globulars. They tend to be most obvious in galaxies of Hubble Type Sd, as Sd galaxies are systematically less luminous than Sc galaxies, which means that there is less dust extinction in these galaxies (lower mass galaxies seem not to be able to hold on to much interstellar dust)

There also exist other types of globular-cluster-like objects;
such as the Massive Compact Young Clusters recently formed in some collisions between galaxies, and similar looking young clusters in our own Milky Way...... such as Westerlund 1 and NGC 3603
(see the post "Terzan Trio")

Robert

P.S
Messier 11 is usually regarded as an "open" star cluster, yet its total mass and its structure resemble that of a Low Mass globular star cluster.

richardo (Rich) · #24 26-09-2011, 03:04 PM

Quote:

Originally Posted by Ross G

An amazing galaxy photo Rich.

I love it.

Thanks.

Ross.

Thanks very much Ross!

Quote:

Originally Posted by iceman

That's a beauty, Rich. Lovely galaxy.

Cheers for the comment Mike!

Quote:

Originally Posted by madbadgalaxyman

Rich,

I am glad I cleared up the identity of the nuclear star cluster in NGC 300.

These objects are interesting because they appear to be similar to globular star clusters, yet they can be quite young, unlike all of our own Galaxy's globulars. They tend to be most obvious in galaxies of Hubble Type Sd, as Sd galaxies are systematically less luminous than Sc galaxies, which means that there is less dust extinction in these galaxies (lower mass galaxies seem not to be able to hold on to much interstellar dust)

There also exist other types of globular-cluster-like objects;
such as the Massive Compact Young Clusters recently formed in some collisions between galaxies, and similar looking young clusters in our own Milky Way...... such as Westerlund 1 and NGC 3603
(see the post "Terzan Trio")

Robert

P.S
Messier 11 is usually regarded as an "open" star cluster, yet its total mass and its structure resemble that of a Low Mass globular star cluster.

Thanks again Robert!
I did read that the stars within the clusters of this particular galaxy were much younger than a typical cluster... interesting to note that this occurs in the fainter, central bulge spiral Galaxies (Sd types) in comparison to the Sc type...
All starts to makes sense when we look a little in depth to the morphology of the galaxy types.

Thanks all for your input..
Much appreciated.

All the best
Rich

madbadgalaxyman (Robert) · #25 26-09-2011, 04:29 PM

Yeah, galaxies with a lot of very luminous and massive stars forming, right now, or just in the past, are more likely to host young and massive star clusters that have a structure and appearance very similar to the canonical "old" globulars that we are very familiar with.
There do seem to be good numbers of these massive and young clusters within galaxies such as NGC 1313 and M83, but last I checked (about a year ago), there was little further confirmation of what exactly these objects are.

For all intents and purposes, these objects, for now, can be regarded as young globular star clusters, though they will eventually lose many of their stars with the passage of time.

The interstellar medium (e.g. molecular and atomic hydrogen gas) in those galaxies that currently have a high Star Formation Rate seems to undergo a whole lot of "shaking and stirring and pounding" from energetic events such as supernova shockwaves and the photon pressure emanating from massive stars. This produces extreme conditions that very occasionally lead to the formation of really massive and beautifully symettric star clusters.
(Last I checked, there was still no widely accepted theory as to how exactly these remarkable objects form!!)

Nuclear star clusters, which are - by definition - found at the centres of galaxies, may have a different history again, due to their peculiar position.

Paul Haese · #26 26-09-2011, 06:56 PM

Nice work Rich. I really like the field of view in this image. There a plenty of other galaxies to look at in the field. The main subject is really well exposed and like others have said a good example of this galaxy. Finding the time to finish it could be tricky now with all this unpredictable weather.

SkyViking (Rolf) · #27 26-09-2011, 07:36 PM

What an amazing view. This is a beautiful image and I really like the subtle processing. Also, the background is just full of action too, all those faint distorted and interacting galaxies are really putting on a show for us. Great work, thanks for sharing.

richardo (Rich) · #28 27-09-2011, 12:12 PM

Quote:

Originally Posted by madbadgalaxyman

Yeah, galaxies with a lot of very luminous and massive stars forming, right now, or just in the past, are more likely to host young and massive star clusters that have a structure and appearance very similar to the canonical "old" globulars that we are very familiar with.
There do seem to be good numbers of these massive and young clusters within galaxies such as NGC 1313 and M83, but last I checked (about a year ago), there was little further confirmation of what exactly these objects are.

For all intents and purposes, these objects, for now, can be regarded as young globular star clusters, though they will eventually lose many of their stars with the passage of time.

The interstellar medium (e.g. molecular and atomic hydrogen gas) in those galaxies that currently have a high Star Formation Rate seems to undergo a whole lot of "shaking and stirring and pounding" from energetic events such as supernova shockwaves and the photon pressure emanating from massive stars. This produces extreme conditions that very occasionally lead to the formation of really massive and beautifully symettric star clusters.
(Last I checked, there was still no widely accepted theory as to how exactly these remarkable objects form!!)

Nuclear star clusters, which are - by definition - found at the centres of galaxies, may have a different history again, due to their peculiar position.

All interesting food for thought!

Quote:

Originally Posted by Paul Haese

Nice work Rich. I really like the field of view in this image. There a plenty of other galaxies to look at in the field. The main subject is really well exposed and like others have said a good example of this galaxy. Finding the time to finish it could be tricky now with all this unpredictable weather.

Thanks very much Paul!
Yes this weather has been a bit all over the shop.
Have had high faint cloud here for the last couple of days... certainly doesn't help when trying to achieve decent focus.

Quote:

Originally Posted by SkyViking

What an amazing view. This is a beautiful image and I really like the subtle processing. Also, the background is just full of action too, all those faint distorted and interacting galaxies are really putting on a show for us. Great work, thanks for sharing.

Thanks for the comments Rolf.. I always liked this galaxy for its delicateness but only ever imaged it once before. It was interesting to see how much effect more time would make...
I'll be prepared next time around and hopefully I'll have a full run at it weather wise.

Thanks again chaps for your comments.

All the best
Rich

Hagar (Doug) · #29 27-09-2011, 07:43 PM

Very nice Rich, I started imaging this mysel a few days back but with only a few hours of exposure and looking at this masterpiece I now realize I have quite a bit of work to go when the sky clears again.

Nice one.

LucasB (Lucas) · #30 27-09-2011, 08:43 PM

Amazing picture with great detail! Brilliant processing and capture.

Lucas

richardo (Rich) · #31 28-09-2011, 04:24 PM

Quote:

Originally Posted by Hagar

Very nice Rich, I started imaging this mysel a few days back but with only a few hours of exposure and looking at this masterpiece I now realize I have quite a bit of work to go when the sky clears again.

Nice one.

Thanks Doug!
Yes, you'll need some time to get anything reasonable that's for sure!
Good luck with the weather....
Got nothing but rain and storms here now

Quote:

Originally Posted by AstroAussie

Amazing picture with great detail! Brilliant processing and capture.

Lucas

Thanks Lucas for the nice comments..

Appreciate your comments guys!

All the best
Rich

Martin Pugh · #32 01-10-2011, 02:25 PM

Hi Rich
NGC300 is a target I started but didnt finish before I left Australia. This image makes me want to pick right up where I left off when I get back in just a few short weeks.

Very well done on this. The colour in the galaxy is a little muted, but otherwise it is quite splendid.

Martin

jase (Jason) · #33 01-10-2011, 04:34 PM

Excellent imaging Rich (as expected). You've produced structure I've not regularily seen in this target. I enjoyed it thoroughly. Well done.

Octane (Humayun) · #34 01-10-2011, 04:44 PM

Mate, that is a corker of an image! I actually find the soft, muted, pastels to be quite aesthetically-pleasing. But, then, I'm an artist and not a scientist!

H

richardo (Rich) · #35 02-10-2011, 03:14 AM

Quote:

Originally Posted by Martin Pugh

Hi Rich
NGC300 is a target I started but didnt finish before I left Australia. This image makes me want to pick right up where I left off when I get back in just a few short weeks.

Very well done on this. The colour in the galaxy is a little muted, but otherwise it is quite splendid.

Martin

Hi Martin, thanks for the reply and comments!
I really started out thinking of binning the colours however I have a gain setting on my camera that needs to be toned down as 2 xs binning leaves dark streaks off the bright stars... soooo, I had to leave everything to full res.
I will really enjoy seeing a version from you and will be great having you back in Oz...

Quote:

Originally Posted by jase

Excellent imaging Rich (as expected). You've produced structure I've not regularily seen in this target. I enjoyed it thoroughly. Well done.

Thanks very much Jase... very muchly appreciated!

Quote:

Originally Posted by Octane

Mate, that is a corker of an image! I actually find the soft, muted, pastels to be quite aesthetically-pleasing. But, then, I'm an artist and not a scientist!

H

Oh thanks H..... yeah you know me.... 'The pastel Man'

...

Thanks very much again you guys...

All the best for now
Rich

marco (Marco Lorenzi) · #36 02-10-2011, 10:26 PM

Very nice Rich, I really like the details of your picture, this galaxy is not so often imaged despite its large size, I never understood why, and you really did a nice job in shooting it!

Clear Skies
Marco

richardo (Rich) · #37 02-10-2011, 11:26 PM

Quote:

Originally Posted by marco

Very nice Rich, I really like the details of your picture, this galaxy is not so often imaged despite its large size, I never understood why, and you really did a nice job in shooting it!

Clear Skies
Marco

Thanks for the comments Marco!
It's definitely big, but such a subtle lady that doesn't give up its inner secrets easily..

As mentioned I would have liked to have got much more time on it.
I guess I can still add to the Ha I never used just to get those HII knots.. that I think would really do a bit more justice.

All the best
Rich

Garyh · #38 04-10-2011, 06:53 PM

Excellent job Rich! love all the details showing!
Enjoyed looking at your latest images on your site!
Very nice work!
cheers Gary

richardo (Rich) · #39 04-10-2011, 11:26 PM

Quote:

Originally Posted by Garyh

Excellent job Rich! love all the details showing!
Enjoyed looking at your latest images on your site!
Very nice work!
cheers Gary

Thanks very much Gaz!
Been a bit lucky with weather breaks in between crap and it has been really good to get some of these objects down as I haven't imaged them with the Newt.
Good to see you back posting again!

All the best
Rich