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.

sgl_imaging_challenge_banner_solar_25_winners.thumb.jpg.fe4e711c64054f3c9486c752d0bcd6f2.jpg

ollypenrice

M51, stage 2, 15 hours up.

Recommended Posts

I really wish I'd not stumbled across this thread. Quite depressing for me :)

That is a lovely looking Image Olly (et all), we appear to be doing the same project.

How do you manage to keep the Blue channel under control, have I just been unlucky? Focusing in R and G I had the FWHM down to 1.2-1.5... But for Blue I was pleased after 30 minutes to get it into the 3's....

Does everyone have issues with Blue... if so how do you control the size of the blue stars?

Great image Olly - well done to all concerned.

Ant

Share this post


Link to post
Share on other sites

It's on the list, Nadeem, but can be done when the moon's around so we'll use the dark time for RGB projects.

Olly

Share this post


Link to post
Share on other sites
I really wish I'd not stumbled across this thread. Quite depressing for me :)

That is a lovely looking Image Olly (et all), we appear to be doing the same project.

How do you manage to keep the Blue channel under control, have I just been unlucky? Focusing in R and G I had the FWHM down to 1.2-1.5... But for Blue I was pleased after 30 minutes to get it into the 3's....

Does everyone have issues with Blue... if so how do you control the size of the blue stars?

Great image Olly - well done to all concerned.

Ant

Yours is going well, Ant. What scope are you using? You obviously have a bit of FL. Problems in blue usually come from lens elements in the system since keeping those short wavelengths under control is like herding cats for opticians. Focal reducer? Very hard to say. It was always a problem in my Meade 127 triplet. Blue would bloat on stars.

Maybe the choice of filter has an effect. Yves' setup uses Baaders.

You can do a 'star curve' in the blue channel in post processing to pull them down, maybe just in the blue. Below, there is a feathered selection active around the star. The bottom point of the curve is on the background sky to 'pin' it. I find it best to use more than one small iteration.

STAR-HALO-CURVE-M.jpg

Olly

Share this post


Link to post
Share on other sites

A Truly magnificent image Olly, I just keep coming back time and time again to peruse this image. Beautiful work!

Share this post


Link to post
Share on other sites

A lovely image Olly, really sharp! I'm beginning to think you could stand in for the hubble if it ever goes down! :grin:

Share this post


Link to post
Share on other sites

I really like M51 after bodes this is my favourite and your capture shows why truly stunning

Share this post


Link to post
Share on other sites

blooming heck Olly that's absolutely stunning

I'll second that quote

Share this post


Link to post
Share on other sites

Certainly the best M51 I've seen! :) And I've seen quite a few :D

Share this post


Link to post
Share on other sites

Certainly the best M51 I've seen! :) And I've seen quite a few :D

I concur! Its bordering on ridiculous how high you have set the bar with this one! Something for us mere mortals to be aiming at.

I simply love the oranges and blues and the little tendrils of what appears to be dust being ripped away from galactic collision.

Share this post


Link to post
Share on other sites

I keep taking a look at it - it's just so lovely! :) So... I'm going to have to have another go at this one, I can see that :D Aiming high!!

Share this post


Link to post
Share on other sites

Thanks all. Remember Yves is co-author of this one and is the man behind the telescope on the technical (and financial) side!

Olly

Share this post


Link to post
Share on other sites

Marvellous work from the pair of you , makes me consider chucking in the towel right here. . . :p

Thanks for giving us all something to strive for .

Steve.

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.


  • 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.