Jump to content

stargazine_ep45_banner.thumb.jpg.71f13bfceacd5e3df366d82c2b6f5f9b.jpg

Recommended Posts

This has been a long term project for me.  I first had a go in 2008, but failed miserably - on many fronts.  Filters with halos, no platesolving, and total confusion about the effects of imaging the inside of a shpere all proved far too much.

I came back to it in 2018 and gathered some data.  Last year I got a bit more.  This year, things went very smoothly, so I am putting it to bed for the moment.

This is sixteen panels.  Most of them are 45m binned 2x2, but the middle ones are about 70m 1x1.

Stacking and ddp stretching was done in CCDStack.  All other processing was done in Affinity, and a very small amount of star reduction in Gimp.

Telescope FSQ105 at F3,6.  Camera G3 16200, filter Chroma 3nm.

Click to enlarge the image.

 

 

CresAff16p.jpg

Edited by don4l
  • Like 35
Link to post
Share on other sites
4 minutes ago, Sp@ce_d said:

Wow.. that's nice to see.. puts things into perspective.. well done for sticking at it.... You'll be looking forward to adding the colour then.. 🤣

You're not wrong.

I have started, and I like what I've managed so far,   but for the life of me, I cannot remember how I processed it.

If we get enough clear nights with no Moon, then I'll collect more OIII, but I don't think that I'll ever get beyond 4 panels.

cresColour.jpg

  • Like 18
Link to post
Share on other sites
2 hours ago, don4l said:

You're not wrong.

I have started, and I like what I've managed so far,   but for the life of me, I cannot remember how I processed it.

If we get enough clear nights with no Moon, then I'll collect more OIII, but I don't think that I'll ever get beyond 4 panels.

cresColour.jpg

 

😮 Oh my!!  That is really starting to look very very nice indeed. I love this.. I do like a good Ha monochrome but this is starting to leap out! I didn't expect you to come back straight away with such a teaser.. no way you can stop now!.. Is that with all Chroma 3nm filters?

Link to post
Share on other sites
8 hours ago, Sp@ce_d said:

 

😮 Oh my!!  That is really starting to look very very nice indeed. I love this.. I do like a good Ha monochrome but this is starting to leap out! I didn't expect you to come back straight away with such a teaser.. no way you can stop now!.. Is that with all Chroma 3nm filters?

Thanks. 

Yes, it is all Chroma filters.

I had thought about 3nm filters for a long time, and couldn't justify the cost.  I first got the Ha and almost immediately ordered the OIII.  With hindsight,  I should have ordered the OIII first.

The 3nm filters made as big a difference as a new camera would, or a new telescope, for example - especially in heavy light pollution.

Link to post
Share on other sites
11 hours ago, don4l said:

but for the life of me, I cannot remember how I processed it.

Stunning mosaic, gorgeous area of the sky with so much going on.

If you used Pixinsight then loading the image I think includes the process history. You can then copy all the processes to a basket or drag to the window and apply to the new images keeping all the same settings.

  • Thanks 1
Link to post
Share on other sites

😮 WOW

I don't know if it's just my imagination but I can see a ducks head (or Swan) left of centre 😀....................😳.....................🤐

 

Mark

Edited by callisto
change wording
  • Thanks 1
Link to post
Share on other sites

That's a roaring success. Lovely, seamless job and a flowing composition made three dimensional by the Crescent.

(By chance I've just been processing a mega mosaic myself with the Crescent just in the bottom corner. It's OSC data shot by Yves Van den Broek.)

Olly

Link to post
Share on other sites
3 hours ago, The Admiral said:

They are raaather nice! I do like the colour one. So what's been your total imaging time so far?

Ian

Thank you.

About 12 - 14 hours in 2008.  All fairly useless due to halos, bad focus and general incompetence.

The above image has about 14 hours, gathered last year and this year,  I've also got 5 hours of OIII which is in the two colour panels.

I think that I would need about three hours OIII per panel,  so I am not at all confident that I will get that done in the next couple of years.

 

Link to post
Share on other sites
3 hours ago, ollypenrice said:

That's a roaring success. Lovely, seamless job and a flowing composition made three dimensional by the Crescent.

(By chance I've just been processing a mega mosaic myself with the Crescent just in the bottom corner. It's OSC data shot by Yves Van den Broek.)

Olly

Thank you, Olly.  I'm quite chuffed that you commented on the 3d effect.  I was trying to emphasise this in the processing.

 

 

Link to post
Share on other sites
6 hours ago, Tom OD said:

That Ha is super. Love the whispy bits at the top if the image.

Tom

Thank you.

I agree about the top row.  I wasn't going to image it, but it seemed to add something.

The wispy bit around the bright star in the top left looks very interesting.  I hope to get back to that part and do something with it.

Link to post
Share on other sites

Your 16 panel Ha image is just great - I will save it for reference when looking for targets in Cygnus. I still wait for the stamina to attempt to do big mosaics like that, maybe when I retire.....

  • Thanks 1
Link to post
Share on other sites
1 hour ago, gorann said:

Your 16 panel Ha image is just great - I will save it for reference when looking for targets in Cygnus. I still wait for the stamina to attempt to do big mosaics like that, maybe when I retire.....

Thanks, Gorann.

 

 

Edited by don4l
Link to post
Share on other sites
On 03/08/2020 at 21:49, don4l said:

All other processing was done in Affinity, and a very small amount of star reduction in Gimp.

I'm shocked.  You don't using Pix or other expensive software, and final photo is just beautiful  :icon_salut:

  • Like 1
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.