Jump to content

sgl_imaging_challenge_2021_2.thumb.jpg.72789c04780d7659f5b63ea05534a956.jpg

IC1318 (Butterfly nebula) in mono


Recommended Posts

This may be a work in progress as I may capture another pane underneath this one to capture the butterfly totally. As this wasn't what I was going for, I didn't know what I was missing and would have framed it differently if only I'd realised!!

My first thoughts with the combination I am using at the moment is that it's frankly creating some great data. The 3nm Ha filter is really pulling out the detail and it's extremely noise free. It takes so little processing it's frankly amazing me.

I think this one seems to be quite deep compared to others I have seen. Would welcome your thoughts on this. Do you think it's too much?

Details

M: HEQ5

T: Takahashi FSQ85 0.73x

C: Atik 460EX mono and 3nm Ha filter

11x1800s calibrated with flats

post-5681-0-14209600-1371463439_thumb.jp

Edited by swag72
  • Like 9
Link to post
Share on other sites
  • Replies 63
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

This may be a work in progress as I may capture another pane underneath this one to capture the butterfly totally. As this wasn't what I was going for, I didn't know what I was missing and would have

Managed to collect the other pane of this last night and processed it this morning. The Butterfly nebula, presented here, a combination of 11x1800s in one pane and 9x1800s for the other. Sadly clouds

If I might be so bold, but the mosaic posted in this thread doesn't really do this image full justice - I hope Sara doesn't mind, but I'm going to post a link to her large version on Flickr

Posted Images

Sara - that is superb. Lovely tonal range and very tight stars right across the frame, even the bright one hasn't burnt out! Could be a tad lighter but that may be more my monitor

Super. Look forward the the next installment...

Link to post
Share on other sites

Can you imagine what the heavens would look like at night if our eyes were also as sensitive to Ha as this 3nm filter :rolleyes:? It's almost unbelievable how much signal there is in this... and those stars are SO tight - I'm very much looking forward to the next one :smiley:

  • Like 1
Link to post
Share on other sites

Thanks all for your comments.

@Mark - It's very nice to be able to not have to process it to death! There's a significant noise reduction compared to what I was experiencing with the 7nm Baader.

@Andy - The next one is on the post-it-note ready for the next clear night!

Link to post
Share on other sites

Another excellent image Sara :). If funds allowed I would go straight for a Tak FSQ85 and skip the ED80 ;).

+1 for Dave's comment, this could get expensive quickly if I keep looking at your images, but I can't help it!

Link to post
Share on other sites

I think this is the best you've ever posted, Sara.

I've just peered at it next to mine of the same region, mine using the FSQ106 rather than the FSQ85, but with bigger pixels. You have finer detail and better contrast, not a shadow of a doubt. You have a lot more data, too, but your setup of 460/Astrodon and a rather familiar FSQ85 is really singing now. I'd be a little softer on clipping back the black point (easy does it) but , holy smoke, I think I might retire and let you get on with it!!

This really is a fine image - and do go for the whole butterfly. It's a super object, rarely examinied on its own.

Olly

Link to post
Share on other sites

Thank you Olly and Steve.

@Olly - I was really quite careful with that black point and I don't think I've clipped it, certainly the points were above 0 in the curves window. I did think it looked perhaps a little too dark though. I will try and get the pane below - I was planning on doing it last night, but couldn't locate a single star in my guide scope (First time that's ever happened) so I need to misalign it a little to find a guide star. I really do appreciate your comments, but don't hang up your hat yet as I often have lucky flukes early on! :smiley:

Edited by swag72
Link to post
Share on other sites

There are details here that I have not seen before in this object, superb work indeed. I think you have set the black point a little too dark for me but I'm splitting hairs here it is a first class image, I may have to sell a limb or two for a Tak!

Link to post
Share on other sites

Thanks John, Francis and Epicycle - When I collect the data for the second pane, I'll reprocess the lot and keep the black point a little higher!

Get saving John!!!

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.