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The Flaming star nebula


madjohn
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You seem to have gone very deep for a DSLR, so that's an impressive feat.

I'm not sure what I'm seeing around the nebula, I think perhaps the concentric patterns are caused by a gradient removal tool or something?

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I've downloaded a widefield image of IC405 from deepskycolours.com and pasted mine up side by side for comparison.
There are differences but they correlate well  - I did use the Scott Rozen method of using an screen invert mask (I'm still learning and practising this) with the Flaming star masked.
The darkness around IC405 maybe looks more contrasty because of using this method.

I'm well happy with this result using a humble 450D - it's shown that it is possible to capture quite faint nebulosity, it's maybe my inexperience of this advanced method that made my image look a little out of the ordinary ;)   

post-2542-0-42006700-1415050747.jpg

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Any chance you could post the sketch on this thread Moonshane? I'd love to see it

Hi John

I warned you.......this was with averted vision at 89x with a 12" dob in a light polluted garden. Excuses out of the way, I have cropped the central section of your image and turned it the right way up (like a newt LOL) to match what I was looking at in my 15mm plossl at about 0.5 degree true field. Hopefully this matches your image which I think shows maybe 5 degrees or so of sky?

As you can see, visually I was getting a bit less of the neb than your imager

post-5119-0-29074600-1415057387.jpg

post-5119-0-49307500-1415057415_thumb.jp

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I've downloaded a widefield image of IC405 from deepskycolours.com and pasted mine up side by side for comparison.

There are differences but they correlate well  - I did use the Scott Rozen method of using an screen invert mask (I'm still learning and practising this) with the Flaming star masked.

The darkness around IC405 maybe looks more contrasty because of using this method.

I'm well happy with this result using a humble 450D - it's shown that it is possible to capture quite faint nebulosity, it's maybe my inexperience of this advanced method that made my image look a little out of the ordinary ;)   

That's a good comparison image but, for me, confirms that there is some dark-light inversion between yours and Rogelio's. Lots of masking and contrast enhancing techniques run this risk. (You see it if you let the background sky markers get too close to a nebula or galaxy in Pixinsight, for instance.) I just suspect that your inverted mask was a little too big.

But, yes, you've got lots of nebulosity from the DSLR.

My FOV is a bit too tight for an ideal comparator. http://ollypenrice.smugmug.com/Other/Best-of-Les-Granges/i-8TzbT5X/0/X3/Flaming%20Star%2019HrHaRGB%20web-X3.jpg

Well done to Shane. I have to confess that I've never tried this visually. Disgraceful!

:grin: lly

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