Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Sign in to follow this  
Uranium235

M16: Eagle Nebula (Ha)

Recommended Posts

Its been cloudy for over a week now, so its been a case of finding something to process. Over the past month or so, Ive been able to grab a few extra long subs on M16 to add to last years haul, but its getting really tricky now - I have about 45 min before it gets too low.

Ive deployed the usual routine for narrowband (high pass filter, sharpening applied to an inverted star selection), plus a little contrast enhancement. This had to be processed by composting two layers to avoid burnout in the core while bringing out the outer nebulosity. Not much noise to speak of, just wondering whether ive made it a little too crispy.

M16: Eagle nebula

10x360 + 10x600 + 5x900 + 1x1800 (4h 25min) Ha

ED80, Atik 314L+, NEQ6

Setpoint: -10

Calibration: none

Thanks for looking! :)

index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=74261

post-5513-0-21416300-1349892786_thumb.jp

Edited by Uranium235
  • Like 1

Share this post


Link to post
Share on other sites

That's incredible :) Very sharp with great detail :)

Share this post


Link to post
Share on other sites

Lots of detail, well processed!

I thought it's already gone until next year.

Mark

Share this post


Link to post
Share on other sites

Lots of detail, well processed!

I thought it's already gone until next year.

Mark

Thanks Mark & Gina.

Its not quite gone just yet, it depends on how low you can go from your location, I have a limit of -25deg (or -15 in the SW) below the southern celestial equator before things start getting a bit tricky.

Share this post


Link to post
Share on other sites

It's gone from my view here - my western view is obscured by trees on higher ground.

Share this post


Link to post
Share on other sites

Very nice! What would a red version look like?

I do have a set of SII and OIII for this, but ive yet to reprocess it into something satisfactory, the RGB data may also need to be composted like the Ha luminance. I will have a crack at doing it tomorrow as it may take some time :)

Share this post


Link to post
Share on other sites

Great shot you did say you were going to get this one done a few months back and this is a brilliant image, really glad I made the effort to image those wonderful nebula in this region including the eagle swan lagoon and triffid, the Helix was fun to do as well.

Share this post


Link to post
Share on other sites

Thanks Mark, you really do have to be quick (and lucky with the weather) to catch this low stuff. But, Ive since had a tinker with the hubble channels (composted two layers) and then merged it with the Ha luminance. Here is what popped out:

index.php?app=core&module=attach&section=attach&attach_rel_module=post&attach_id=74270

post-5513-0-90291300-1349901964_thumb.jp

Share this post


Link to post
Share on other sites

Thanks Tom :)

Ive just spotted a bit of unwanted blue in the bottom left corner (cant believe I didnt notice that!), its probably just a slight gradient in the OIII channel - I'll take a look at fixing it later.

Share this post


Link to post
Share on other sites

I thin that's a beautiftul image :) Are you sure the blue isn't just nebulosity?

Share this post


Link to post
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.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.