Search found 252 matches

by Rkonrad
Fri Nov 24, 2023 6:54 pm
Forum: Image Processing Troubleshooting
Topic: true colour in globular clusters
Replies: 20
Views: 118202

Re: true colour in globular clusters

Here are my stacks for Tucanae 47.

https://drive.google.com/drive/folders/ ... drive_link

Thanks for all your help!
by Rkonrad
Thu Nov 23, 2023 12:09 am
Forum: Image Processing Troubleshooting
Topic: M45 colour balance
Replies: 0
Views: 56807

M45 colour balance

Well here's another query back to back on my last one. Things have piled up since I haven't visited the forum for so long :) I took this image with an 11 inch RASA f2.3. I think there is about 88 min of exposure with 4 minute lights which is a lot of exposure with such a scope. I was amazed to see t...
by Rkonrad
Wed Nov 22, 2023 11:44 pm
Forum: Image Processing Troubleshooting
Topic: true colour in globular clusters
Replies: 20
Views: 118202

Re: true colour in globular clusters

Sorry, I've been away for a week or so and won't be back for several days. I will post a Dropbox of my stacks and I'll also restack them with a different programme though my m13 looks the same (used with a different scope and osc ). Looks like Ivo may be away or busy but I'd love his view on this as...
by Rkonrad
Tue Nov 14, 2023 9:24 pm
Forum: Image Processing Troubleshooting
Topic: true colour in globular clusters
Replies: 20
Views: 118202

Re: true colour in globular clusters

So I tried copying the information from the log of prior rgb images, applied and got this https://www.flickr.com/gp/rkonrad/74Pw0t51je.
Now too blue. I would love to hear Ivo's take on this problem if he has time.

Thanks! Richard
by Rkonrad
Tue Nov 14, 2023 7:08 pm
Forum: Image Processing Troubleshooting
Topic: true colour in globular clusters
Replies: 20
Views: 118202

Re: true colour in globular clusters

You did a lot of work Mike - thanks! I've used this scope a lot as it is one of the "free" scopes at Itelescope. Here are few other rgb images I took with the same setup. https://www.flickr.com/gp/rkonrad/06RT3ZPee4 (2 pictures). Did you want to see all the light frames or just the stacked one? The ...
by Rkonrad
Tue Nov 14, 2023 3:11 pm
Forum: Image Processing Troubleshooting
Topic: true colour in globular clusters
Replies: 20
Views: 118202

Re: true colour in globular clusters

I had the exact same problem with m13 some time ago. The scope is a 12.5 RC with RGB filters - taken in Australia under nice dark skies. My guess is that the field of view does not contain the wide variety of stars needed for a proper white balance. I can forward the data to anyone who would like it...
by Rkonrad
Tue Nov 14, 2023 4:34 am
Forum: Image Processing Troubleshooting
Topic: true colour in globular clusters
Replies: 20
Views: 118202

true colour in globular clusters

Hi all Nice to return to the forum after a long time. I've recently imaged 47 Tucanae - globular cluster and found that scientific colour was not able to give the stars the correct colours. In a case where there isn't an evenly balanced variety of stars, how would I achieve the proper white balance?...
by Rkonrad
Sat Aug 13, 2022 2:23 am
Forum: Gallery
Topic: NGC 7000 / The Great Wall
Replies: 7
Views: 2521

Re: NGC 7000 / The Great Wall

My jaw drops. Very nice!!
by Rkonrad
Fri Aug 12, 2022 8:09 pm
Forum: Software Troubleshooting
Topic: NB Accent - multiple data
Replies: 14
Views: 30201

Re: NB Accent - multiple data

Mike, I tried the Siril option you described and all I got was a black image. Perhaps I didn't do it right. I'll try again though thought I followed your directions carefully. Anyway, I got impatient and used the blend tool to achieve a balance between rgb and bicolour. Here is my try. https://www.f...
by Rkonrad
Fri Aug 12, 2022 8:05 pm
Forum: Software Troubleshooting
Topic: NB Accent - multiple data
Replies: 14
Views: 30201

Re: NB Accent - multiple data

Thanks for the suggestion Jochen. I did try it and the software wasn't able to tell what was color - just monochrome.