Thank you for the "nudge". I ran this yesterday on C/2023 P1 and it really made a difference. Kudos to Russell for the upgrade to SXT! As always, your instructional videos are informative and straight forward.
thanks for the useful video. Just getting into Pixinsight and using previously purchased tutorials by Peter Zelinka, he mentioned your videos. Can see why. Detailed. Well made! So...will look forward to going through your other videos. And future. Cheers. Peter Ensrud
Brilliant tutorial Adam! I will reprocess my C/2022 e3 rtf with your new approach. One question: STX will remove the stars within the mask and leave a hole in the stars image, so how do you stack the stars? …… On another note, I have good news for us both! My wife has gifted me your Fundamentals tutorial package for my birthday (today 😊). I’m not too shabby using Pixinsight but have reached a stage where I want to advance my knowledge and can think of no better way than your tutorials. Cross fingers, Horizons for my next birthday.
Remember..the stars only image can be generated in a different way (with regards to comets). These stars from the aligned comet images are thrown out. See my tutorials on my site for all of the details on how to do this. (Typically you use the CometAlignment process and subtract the moving comet from the star-aligned data and then integrate. This gives you a stars only image... no holes or anything.)
Partially it is a pity. Since creating good comet images has been a challenge so far, and if you mastered it and got a good comet image - well done, there weren't many.
This is really useful information; thanks Adam. Now would it be possible to do one on comet processing when the comet is in a field with DSO--galaxies and nebulae? I have an image of ZTF passing through a lot of nebulosity and M81, etc., that is proving so very difficult to get everything right :D
Thanks Adam, as usual!! Maybe I lost some word, but how do you get such distant stars, so that they can be rejected? Is that because you shot R, G, B, cycling through them one sub per each (so that each, say, R frame is distant from the next R)?
Adam - I have a very basic question. I am new to all of this. Do I run the star extermination on the individual light frames before stacking ? If so, do I do an auto stretch first ? Or do I stack the comet light frames and then run the star exterminator process. I am just not sure what images you are operating on . Thank you! Rob
I don't want to be a "jerk" about this... but Comet Academy explains and demonstrates all of this! www.adamblockstudios.com/categories/comet-academy Some answers: yes on the individual frames, no on stretching, no on pre-stacking (this last is a common error)
I ran the new version of batch processing with mask on my comet pics. It did a good job of removing stars and leaving the comet untouched, but I get a strange background pattern of a yellowish grid of squares in the final integrated image. I tried several rejection strength, but it is always there....
That is a different issue with SXT that deals with the fact there is a tiling for it to do its job. Typically this happens when the image is very noisy. I thought Russ has addressed this in new versions of SXT... you certain you have the latest AI? Talk to Russ.
@@AdamBlock Thank you for you answer. Yes, I do have the latest version. I don't even know how to contact Russ, I did not see anything on his website...
You are right... BUT- the area being protected is small..and the likelihood of there being an issue (bright stars) is less... which means this is a definite improvement in the process for comets.
@@AdamBlock I tried this last night on Tsuchinshan-ATLAS data I took earlier in the week. I am going to have to review the video again as when I set the mask over the comet and ran STX, my results were I completely white image and the, very distorted comet view, alone in the mask window. Not the results I was hoping lol. Thank you for what you do😊
@@FredLombardo The YT videos I make tend not to be entirely full explanations. That takes longer. Also, this is an old video. The techniques have improved. I created Comet Academy- the only dedicated comet processing course (in Pixinsght and others) in the world. If you want to know everything get Comet Academy. www.adamblockstudios.com/categories/comet-academy/
Thank you for the "nudge". I ran this yesterday on C/2023 P1 and it really made a difference. Kudos to Russell for the upgrade to SXT! As always, your instructional videos are informative and straight forward.
Thanks!
Thank you, Adam! Your tutorial is very helpful for this comet, and reprocessing old data.
Thanks Steve!
thanks for the useful video. Just getting into Pixinsight and using previously purchased tutorials by Peter Zelinka, he mentioned your videos. Can see why. Detailed. Well made! So...will look forward to going through your other videos. And future. Cheers. Peter Ensrud
These public/UA-cam videos are only a shadow/taste of what I offer. The site is AdamBlockStudios.com Thanks. Adam
Brilliant tutorial Adam! I will reprocess my C/2022 e3 rtf with your new approach. One question: STX will remove the stars within the mask and leave a hole in the stars image, so how do you stack the stars? …… On another note, I have good news for us both! My wife has gifted me your Fundamentals tutorial package for my birthday (today 😊). I’m not too shabby using Pixinsight but have reached a stage where I want to advance my knowledge and can think of no better way than your tutorials. Cross fingers, Horizons for my next birthday.
Remember..the stars only image can be generated in a different way (with regards to comets). These stars from the aligned comet images are thrown out. See my tutorials on my site for all of the details on how to do this. (Typically you use the CometAlignment process and subtract the moving comet from the star-aligned data and then integrate. This gives you a stars only image... no holes or anything.)
@@AdamBlock Yes of course. I forgot this detail from when I processed using SXT batch in February. Thank you for your reply and guidance.
Partially it is a pity. Since creating good comet images has been a challenge so far, and if you mastered it and got a good comet image - well done, there weren't many.
Thank you Adam
Thanks~!
the beauty is in the tail
This is really useful information; thanks Adam. Now would it be possible to do one on comet processing when the comet is in a field with DSO--galaxies and nebulae? I have an image of ZTF passing through a lot of nebulosity and M81, etc., that is proving so very difficult to get everything right :D
Yes, I explain how to do this in my Horizons videos.
Great!
Thanks Adam, as usual!! Maybe I lost some word, but how do you get such distant stars, so that they can be rejected? Is that because you shot R, G, B, cycling through them one sub per each (so that each, say, R frame is distant from the next R)?
Exactly! It does depend on the exposure time and motion of the comet... but cycling the filters helps.
Adam - I have a very basic question. I am new to all of this.
Do I run the star extermination on the individual light frames before stacking ? If so, do I do an auto stretch first ? Or do I stack the comet light frames and then run the star exterminator process. I am just not sure what images you are operating on .
Thank you!
Rob
I don't want to be a "jerk" about this... but Comet Academy explains and demonstrates all of this! www.adamblockstudios.com/categories/comet-academy Some answers: yes on the individual frames, no on stretching, no on pre-stacking (this last is a common error)
I ran the new version of batch processing with mask on my comet pics. It did a good job of removing stars and leaving the comet untouched, but I get a strange background pattern of a yellowish grid of squares in the final integrated image. I tried several rejection strength, but it is always there....
That is a different issue with SXT that deals with the fact there is a tiling for it to do its job. Typically this happens when the image is very noisy. I thought Russ has addressed this in new versions of SXT... you certain you have the latest AI? Talk to Russ.
@@AdamBlock Thank you for you answer. Yes, I do have the latest version. I don't even know how to contact Russ, I did not see anything on his website...
@@ulrikewitturfee3638 It is under "Account" and Get Support. I think you make an account on his site... likely then you can e-mail for support.
STX is achronim for?
StarXTerminator by Russ Croman. Too big to put in the thumbnail.
if rejecting stars was this easy we wouldnt need SXT!
You are right... BUT- the area being protected is small..and the likelihood of there being an issue (bright stars) is less... which means this is a definite improvement in the process for comets.
Where is this GAME script? I don’t have it
AdamBlockStudios.com
@@AdamBlock I tried this last night on Tsuchinshan-ATLAS data I took earlier in the week. I am going to have to review the video again as when I set the mask over the comet and ran STX, my results were I completely white image and the, very distorted comet view, alone in the mask window. Not the results I was hoping lol. Thank you for what you do😊
@@FredLombardo The YT videos I make tend not to be entirely full explanations. That takes longer. Also, this is an old video. The techniques have improved. I created Comet Academy- the only dedicated comet processing course (in Pixinsght and others) in the world. If you want to know everything get Comet Academy. www.adamblockstudios.com/categories/comet-academy/