Search found 252 matches
- Mon Aug 08, 2022 6:22 pm
- Forum: Software Troubleshooting
- Topic: NB Accent - multiple data
- Replies: 14
- Views: 30202
Re: NB Accent - multiple data
Hi Mike, So sorry to reply to your most generous help this late. I wasn't successful following your advice and the link re: gimp. I'll try again the tell you my results maybe with screenshots. The data is from another version of Tarantula this time taken with hours perhaps days of exposure (challeng...
- Mon Aug 08, 2022 6:16 pm
- Forum: Gallery
- Topic: Tarantula Nebula
- Replies: 2
- Views: 1074
Re: Tarantula Nebula
Thanks Mike. Though it was a 20' scope, most of the frames were taken either at dusk, very poor seeing etc. Also the Ha set has about half as much exposure as the Oiii - so there was a lot of noise to work around. As usual, I tend to stretch the data to its limits and beyond. So the murkiness as you...
- Sun Aug 07, 2022 4:44 am
- Forum: Gallery
- Topic: Tarantula Nebula
- Replies: 2
- Views: 1074
Tarantula Nebula
I imaged this remotely via itelescope at the Siding Springs Observatory. Equipment:. Planewave 20', FLI-PL 09000 CCD The exposures are: 13x180 Ha 22x 180 Oiii Not bad for a 20' but the seeing was terrible and many of the frames were during dusk. The moon was almost full. I struggled with noise and w...
- Thu Apr 21, 2022 8:21 pm
- Forum: Image Processing Troubleshooting
- Topic: mosaics
- Replies: 2
- Views: 1619
Re: mosaics
Just to add: I've calculated the mosaic coordinates from telescopius and I've set it with a 5% overlap. Is that enough? Default is 10%.
Richard
Richard
- Thu Apr 21, 2022 7:46 pm
- Forum: Image Processing Troubleshooting
- Topic: mosaics
- Replies: 2
- Views: 1619
mosaics
Hi, I'm in the process of taking some images for the purpose of a mosaic (2x4). It would be my first try. Does anyone have any thoughts? I'm using Linux. Would I stitch the frames together processed or unprocessed? With the former, I'm assuming the processing steps would need to be identical as the ...
- Thu Apr 21, 2022 7:37 pm
- Forum: Software Troubleshooting
- Topic: NB Accent - multiple data
- Replies: 14
- Views: 30202
Re: NB Accent - multiple data
Hi Mike,
What I did was blend 50/50 of the two stacks - Ha and Oiii on the linear level. I don't quite understand the logic behind it though. How would ST know which part of the image comprises of Ha and which Oiii? Thanks for all our help.
Richard
What I did was blend 50/50 of the two stacks - Ha and Oiii on the linear level. I don't quite understand the logic behind it though. How would ST know which part of the image comprises of Ha and which Oiii? Thanks for all our help.
Richard
- Mon Apr 11, 2022 5:06 pm
- Forum: Software Troubleshooting
- Topic: NB Accent - multiple data
- Replies: 14
- Views: 30202
Re: NB Accent - multiple data
Thanks Mike, The blend is 50% Ha and 50% Oiii. I've tried adding this at nb accent at appropriate time, chose the 3rd option but no colour comes through. I can't imagine how StarTools could know what data is on there unless I assign it. Ivo, is it possible to incorporate 2 nb accent files (or inform...
- Mon Apr 11, 2022 12:26 am
- Forum: Software Troubleshooting
- Topic: NB Accent - multiple data
- Replies: 14
- Views: 30202
NB Accent - multiple data
Hi, I am processing a rather nice data set (not my own) of the tarantula nebula. I want to use the lrgb data sets and nbaccent with the Ha AND Oiii files. Is that possible? It looks like I can only add one or the other under this option. I tried blending the 2 files and loading them but how would St...
- Sun Mar 13, 2022 4:32 am
- Forum: Gallery
- Topic: Rho Ophiuchi
- Replies: 1
- Views: 840
Rho Ophiuchi
I took this image remotely via itelescope in Chile. I believe there is roughly 5-6 hours of data here including some Ha. Reducing the stars was very challenging . Thanks for looking. https://flic.kr/p/2n6SriT
Cheers Richard
Cheers Richard
- Wed Feb 16, 2022 4:20 pm
- Forum: Software Troubleshooting
- Topic: converting mask from log file
- Replies: 1
- Views: 13987
converting mask from log file
I had my first go at converting the base64 code from the log to a .png file at motobit.com. I followed instructions and when I tried to load it (open) the mask, I got the message "dimensions differ from already loaded file". What to do here...?
Thanks! Richard
Thanks! Richard