Jump to content

Helix Nebula - NGC 7293


Greg M
 Share

Recommended Posts

09/03_04/2021
First light with all new gear.
Explore Scientific ED152CF f8 - 1216mm F.L.
ZWO ASI2600mm Pro
Chroma RGB filters
30x 120sec ea. RGB = 3 hours

Taken from Nelson's Landing, southeast of Las Vegas.

Edited in PixInsight, tweaked in PhotoShopCC

 

Over the course if this night and the evening of 09/04_05 I also managed to capture 3 hours of Ha and 3 hours of OIII data that I have yet to integrate into this image.

I've learned that with the new 2600mm I can push my broadband exposures much greater than I could with the 1600. I should have went with 4 or even 5 minute subs.

 

spacer.png

 

 

  • Like 9
Link to comment
Share on other sites

Here it is with the Ha & OIII data added but my PixInsight skills are horrible, I'm just now learning the program. It doesn't seem to have added much yet there is so much in the stacked Ha & OIII channels. I don't think I have the percentages on the combine right just yet.

spacer.png

  • Like 6
Link to comment
Share on other sites

On 9/8/2021 at 6:33 PM, Greg M said:

Here it is with the Ha & OIII data added but my PixInsight skills are horrible, I'm just now learning the program. It doesn't seem to have added much yet there is so much in the stacked Ha & OIII channels. I don't think I have the percentages on the combine right just yet.

spacer.png

Getting there, one thing is to not clip the black point too much. Making the background too dark will lose the fainter details. A little more noise might show but that can be dealt with. Another tip is to separate the stars with Starnet and work on the nebulosity and stars to get the best colours in each. A little star reduction and tweaking on the separate images then recombine with Pixelmath.

  • Thanks 1
Link to comment
Share on other sites

8 hours ago, MarkAR said:

Getting there, one thing is to not clip the black point too much. Making the background too dark will lose the fainter details. A little more noise might show but that can be dealt with. Another tip is to separate the stars with Starnet and work on the nebulosity and stars to get the best colours in each. A little star reduction and tweaking on the separate images then recombine with Pixelmath.

Thanks Mark. At this point, that is beyond my scope of knowledge.  I'll get there eventually. 

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...