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  #1  
Old 17-07-2017, 09:24 PM
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Rho Ophiuchi Milky Way area with Gum Nebula

Here is the colour for the Rho Ophiuchi area of the Milky Way.

I was surprised by the large Ha structures around Rho Ophiuchi that hardly ever get shown and by the massive (I am pretty sure its a Gum nebula) nebula above it.

This is one panel of a larger mosaic.

http://www.pbase.com/gregbradley/image/165756986/large


http://www.pbase.com/gregbradley/ima...56986/original


Greg.
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Last edited by gregbradley; 17-07-2017 at 11:03 PM.
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  #2  
Old 17-07-2017, 10:31 PM
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rustigsmed (Russell)
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very nice greg - i havent commented for ages as i've been about a year without a photo myself but this is great, the red stands out and is blended beautifully.

cheers
russ
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  #3  
Old 17-07-2017, 10:40 PM
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very nice greg - i havent commented for ages as i've been about a year without a photo myself but this is great, the red stands out and is blended beautifully.

cheers
russ
Thanks very much Russ. Hopefully you get a few images in the near future but no need to have posted an image to make a comment yourself.

Greg.
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  #4  
Old 17-07-2017, 10:54 PM
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The red certainly stands out significantly more than my non-modified D7200!
I've never been quite sure but is there supposed to be a stronger blue reflection in the middle of this image?

I see it in my shots but cannot quite figure out if it is from the moon though.
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  #5  
Old 17-07-2017, 11:02 PM
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Quote:
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The red certainly stands out significantly more than my non-modified D7200!
I've never been quite sure but is there supposed to be a stronger blue reflection in the middle of this image?

I see it in my shots but cannot quite figure out if it is from the moon though.
In this image there is only 2 x 10minute blue as the 3rd blue was no good. I took some more blue the next clear night but it was badly moon affected. So I plan to add some more blue next trip and new moon. I think there should be more blue around the Blue Horsehead part of Rho Ophiuchi. Just near the extreme of this image. The vagaries of imaging.
I find when doing a mosaic with filtered imaging like this you end up keeping an accounting record of what you need to complete the image and
its best to process the image immediately so you don't think you have the data when you don't.

Greg.
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  #6  
Old 18-07-2017, 12:21 AM
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Looks good Greg. Nice detail and colour. I would be tempted to smooth it slightly with an inverse layer mask but that's probably just me. Also I wonder what a starless version would look like?

Steve
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  #7  
Old 18-07-2017, 01:03 AM
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Really quite nice Greg, is that the 75mm lens? Remindes me of how that scene looked when photographed with red sensitive film, back when that lens was first released how is the bloating (CA) in RGB?

Mike
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  #8  
Old 18-07-2017, 08:19 AM
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Looks good Greg. Nice detail and colour. I would be tempted to smooth it slightly with an inverse layer mask but that's probably just me. Also I wonder what a starless version would look like?

Steve
Thanks Steve. I'll check that out. Once its a mosaic minor background noise will tend to disappear as well but a bit more noise control is easily done.

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Really quite nice Greg, is that the 75mm lens? Remindes me of how that scene looked when photographed with red sensitive film, back when that lens was first released how is the bloating (CA) in RGB?

Mike
Thanks Mike. Yes it does have a filmlike look to it.. CA seemed very minor.
I did notice some minor weak registration in one corner. I think the lens needs to be packed out in one corner as it may have a small amount of tilt. But as I had already done several hours when I noticed that I couldn't rectify it until I started a new panel otherwise they wouldn't align. But CA seems minimal. The 165 f2.8 is the more perfect lens on the Proline.

Greg.
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  #9  
Old 18-07-2017, 10:10 AM
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Very nice image Greg, looks dramatic and punchy - well done
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  #10  
Old 18-07-2017, 10:14 AM
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rh area

Very good Greg, it looks like stellar confectionary!
Graham
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  #11  
Old 18-07-2017, 11:27 AM
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That's an amazing field and those big Gum nebulae are something else.
What's also interesting to me is that loop of nebulosity in the area of the Blue Horesehead. Haven't seen that come through so strongly on an image before.
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  #12  
Old 18-07-2017, 06:47 PM
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Quote:
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Very nice image Greg, looks dramatic and punchy - well done
Thanks Andy. its an amazing area of the Milky Way and very colourful. I was aiming to show the Ha areas not usually seen.

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Originally Posted by graham.hobart View Post
Very good Greg, it looks like stellar confectionary!
Graham
Thanks Graham. I'll be adding to it as I process the data and perhaps reshoot a bit that was moon affected.

Quote:
Originally Posted by Retrograde View Post
That's an amazing field and those big Gum nebulae are something else.
What's also interesting to me is that loop of nebulosity in the area of the Blue Horesehead. Haven't seen that come through so strongly on an image before.
Yes that is what I found very interesting. Not usually seen.
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  #13  
Old 18-07-2017, 07:22 PM
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Great shot...well done Greg...love the rich star field too
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  #14  
Old 18-07-2017, 07:54 PM
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Ha-a-gogo, Greg That's a great and unique image.

Cheers,
Rick.
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  #15  
Old 18-07-2017, 08:10 PM
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Great shot...well done Greg...love the rich star field too
Cheers Louie.

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Ha-a-gogo, Greg That's a great and unique image.

Cheers,
Rick.
Thanks Rick. I hope to extend it shortly. Some of the subs in the other panels were moon affected from 2 days later on compared to the first panel.

Greg.
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  #16  
Old 20-07-2017, 09:27 PM
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Hi Greg,
Very very pretty indeed!
Well done!

Great colours!
Cheers,
Tim
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  #17  
Old 21-07-2017, 08:07 AM
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Hi Greg,
Very very pretty indeed!
Well done!

Great colours!
Cheers,
Tim
Thanks Tim and congrats on your HM at the Malins!
Greg.
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  #18  
Old 21-07-2017, 08:08 AM
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multiweb (Marc)
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That's a pretty cool shot Greg. Deep with lovely colors.
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  #19  
Old 22-07-2017, 10:17 PM
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That's a pretty cool shot Greg. Deep with lovely colors.
Cheers Marc. Hopefully I'll have a larger mosaic to post shortly.

Greg.
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