NGC1760 Super Bubble in the LMC

gregbradley · #1 27-04-2019, 12:18 PM

Just to show I am not only doing super widefields!

Here is an unusual neb bubble in the LMC. This is at nearly 3 metres focal length.

https://pbase.com/gregbradley/image/169109503/large

Greg.

strongmanmike (Michael) · #2 27-04-2019, 01:37 PM

Nice result there Greg, a great LMC nebula, so much to see, like a crazy elaborate cosmic artwork, must drive MikeBJ wild with excitment, there are all manner of animals and faces in there!

Mike

Andy01 (Andy) · #3 27-04-2019, 02:45 PM

Looks great Greg, 3 metres FL wow, that'll test the guiding out!

gregbradley · #4 27-04-2019, 03:31 PM

Quote:

Originally Posted by strongmanmike

Nice result there Greg, a great LMC nebula, so much to see, like a crazy elaborate cosmic artwork, must drive MikeBJ wild with excitment, there are all manner of animals and faces in there!

Mike

Thanks Mike. I think it looks like a bug on a windscreen!

Quote:

Originally Posted by Andy01

Looks great Greg, 3 metres FL wow, that'll test the guiding out!

Cheers Andy. Yes it is a test.

Greg.

strongmanmike (Michael) · #5 27-04-2019, 05:35 PM

Hi Greg, I was looking on my mobile phone before but when viewed on a computer monitor I can see there are small halo rings around the stars, I think when these appeared in your work last time it was from the masking and you were able to get rid of them

Mike

gregbradley · #6 27-04-2019, 06:01 PM

Quote:

Originally Posted by strongmanmike

Hi Greg, I was looking on my mobile phone before but when viewed on a computer monitor I can see there are small halo rings around the stars, I think when these appeared in your work last time it was from the masking and you were able to get rid of them

Mike

Interesting. I'll go back and recheck the subs and fix it. Perhaps the seeing deteriorated or it was low in the sky and the blue didn't do well. I remember there was some cloudy weather when I did this one.

Greg.

gregbradley · #7 27-04-2019, 06:43 PM

Fixed the star halos.

Looking over the times of the data the blue data was taken later mostly after midnight and last after red and green. As I recall that night was cloudy until later in the evening when it cleared up. So I started the imaging run late like 11pm or so.

The blue and green subs are worse seeing than the red (red if often the sharpest after luminance anyway).

Fixed it as best I can and it came out pretty well.

same links.

Greg.

Atmos (Colin) · #8 27-04-2019, 07:03 PM

Looking good Greg! It’s quite an interesting object, looking at it it would appear as if there has only been one generation of stars that has occurred but further reading suggests that there may be 2-3 generations of stars within this region.

One observation of mine is that the Ha has overpowered the colour rendition within some of the other star forming regions.
Very nice overall however

gregbradley · #9 27-04-2019, 10:22 PM

Quote:

Originally Posted by Atmos

Looking good Greg! It’s quite an interesting object, looking at it it would appear as if there has only been one generation of stars that has occurred but further reading suggests that there may be 2-3 generations of stars within this region.

One observation of mine is that the Ha has overpowered the colour rendition within some of the other star forming regions.
Very nice overall however

Thanks Colin.

I have reduced the Ha to be more subtle.
There are some nice subtle colours in the lighter areas of the Nebula . Hbeta. The background stars are more prominent as well.

Greg.

topheart · #10 28-04-2019, 01:56 PM

Nice work Greg!
Cheers,
Tim

gregbradley · #11 28-04-2019, 02:54 PM

Quote:

Originally Posted by topheart

Nice work Greg!
Cheers,
Tim

Thanks Tim.

Greg.

Peter Ward · #12 28-04-2019, 05:04 PM

Hummm...lacks a little "snap" to my eye, but a great rendition just the same.
Nice one

gregbradley · #13 28-04-2019, 06:42 PM

Quote:

Originally Posted by Peter Ward

Hummm...lacks a little "snap" to my eye, but a great rendition just the same.
Nice one

Yes I was thinking the same when I did the last version. I was happy with the colours but yes it needs a bit more pop.

I'll see what I can do with it. Its close.

Greg.

gregbradley · #14 28-04-2019, 06:55 PM

I think I have it now. This is about as far as I can take this image (at least for tonight hehe).

Gee astrophotography is easy.

I was very happy to get the data as I had the Ha from the night before but then it was cloudy the next night. I stuck my head outside at 10:30pm or so and was surprised to see a completely clear sky. I set up and had imaging rolling within 10-15 minutes.

But the object was past ideal and for some reason I find objects near the SCP tend to be a little blurry. I guess we are looking though more atmosphere in that direction.

A bit more pop in the image now as far as I am willing to take it and I am happy with the colour which in a way hardly needed anything as it was nice right in the masters.

https://pbase.com/gregbradley/image/169109503/large

It looks like this giant bug is coming to get us!

Greg.

Stevec35 (Steve) · #15 29-04-2019, 11:40 AM

Nice one Greg. I didn't see the earlier versions but I like the colour and detail on this one. There is certainly a lot of great stuff to image in the LMC.

Cheers

Steve

gregbradley · #16 29-04-2019, 08:24 PM

Quote:

Originally Posted by Stevec35

Nice one Greg. I didn't see the earlier versions but I like the colour and detail on this one. There is certainly a lot of great stuff to image in the LMC.

Cheers

Steve

Thanks Steve. You know how it is. I tend to go through evolutions on some images. That is fine as they usually end up better than where they started.

Greg.