two telescopes on same target
- Mirrorgirl
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two telescopes on same target
Sky fi wireless telescope controller.. Rebel t3i.. light pollution L XTREME, Idas light pollution filter and Antlia 3nm gold, Antlia h alpha filter filter..other filters .. pixinsight .. startools..
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- Lady Fraktor
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Re: two telescopes on same target
I cannot see changing the telescope to be detrimental to the image.
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Re: two telescopes on same target
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Re: two telescopes on same target
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
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Re: two telescopes on same target
I really have no idea! Not ever messed around with trying that. I did play around with a few light frames shot with two different scopes and combined in Pixinsight WBPP. I will send another note soon.
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
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Re: two telescopes on same target
DSO AP: Orion 200mm f/4 Newtonian Astrograph; ATIK 383L+; EFW2 filter wheel; Astrodon Ha,Oiii,LRGB filters; KWIQ/QHY5 guide scope; Planetary AP: Celestron C-11; ZWO ASI120MC; Portable: Celestron C-8 on HEQ5 pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome; iOptron CEM60 (pier); Helena Observatory (H2O) Astrobin
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Re: two telescopes on same target
I had some Horsehead/Flame data from 2020 imaged with the Explore Scientific ED102 (571mm) and some Horsehead/Flame data from 2021 imaged with the Sharpstar 61 (275mm).
I simply (for test purposes) added 10 lights from the 2020 dataset and 10 lights from the 2021 dataset into the "Lights" tab of Pixinsight's WBPP. They were both 120 exposure lengths, but if the data was of different exposure times, just separate them with the keyword "EXPTIME".
I used no calibration frames.
The only issue that I had was in registration and that turned out to be that the geometry was different between the datasets. The 2020 data was shot with
The frames registered and integrated fine.
These images are the stacked combination (masterlight) on the left and one light frame from each of the datasets (the middle and right image).
You can see in the combined image (left) that the image would have to be cropped to the crudely drawn arrows in the below image.
I have no idea if this is the correct way to combine this sort of data. It does look like the s/n of the area to be cropped (the combined area) is much higher.
I hope that someone with experience in this process chimes in. I would love to hear how it is correctly done!
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
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Re: two telescopes on same target
Juno16 wrote: ↑Sat Nov 12, 2022 9:45 pm Not sure if this is the correct approach, but it looks like it might be close.
I had some Horsehead/Flame data from 2020 imaged with the Explore Scientific ED102 (571mm) and some Horsehead/Flame data from 2021 imaged with the Sharpstar 61 (275mm).
I simply (for test purposes) added 10 lights from the 2020 dataset and 10 lights from the 2021 dataset into the "Lights" tab of Pixinsight's WBPP. They were both 120 exposure lengths, but if the data was of different exposure times, just separate them with the keyword "EXPTIME".
I used no calibration frames.
The only issue that I had was in registration and that turned out to be that the geometry was different between the datasets. The 2020 data was shot with APT and the 2021 data was shot with N.I.N.A., and I am not sure if that is why the orientation was different. I corrected each of the ten frames from the 2020 dataset just for the test.
The frames registered and integrated fine.
Capture.JPG
These images are the stacked combination (masterlight) on the left and one light frame from each of the datasets (the middle and right image).
Thanks so much for that info, Jim Thank you
Capture1JPG.JPG
You can see in the combined image (left) that the image would have to be cropped to the crudely drawn arrows in the below image.
combination1.jpg
I have no idea if this is the correct way to combine this sort of data. It does look like the s/n of the area to be cropped (the combined area) is much higher.
I hope that someone with experience in this process chimes in. I would love to hear how it is correctly done!
Sky fi wireless telescope controller.. Rebel t3i.. light pollution L XTREME, Idas light pollution filter and Antlia 3nm gold, Antlia h alpha filter filter..other filters .. pixinsight .. startools..
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- Juno16
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Re: two telescopes on same target
Mirrorgirl wrote: ↑Sun Nov 13, 2022 9:53 amJuno16 wrote: ↑Sat Nov 12, 2022 9:45 pm Not sure if this is the correct approach, but it looks like it might be close.
I had some Horsehead/Flame data from 2020 imaged with the Explore Scientific ED102 (571mm) and some Horsehead/Flame data from 2021 imaged with the Sharpstar 61 (275mm).
I simply (for test purposes) added 10 lights from the 2020 dataset and 10 lights from the 2021 dataset into the "Lights" tab of Pixinsight's WBPP. They were both 120 exposure lengths, but if the data was of different exposure times, just separate them with the keyword "EXPTIME".
I used no calibration frames.
The only issue that I had was in registration and that turned out to be that the geometry was different between the datasets. The 2020 data was shot with APT and the 2021 data was shot with N.I.N.A., and I am not sure if that is why the orientation was different. I corrected each of the ten frames from the 2020 dataset just for the test.
The frames registered and integrated fine.
Capture.JPG
These images are the stacked combination (masterlight) on the left and one light frame from each of the datasets (the middle and right image).
Thanks so much for that info, Jim Thank you
Capture1JPG.JPG
You can see in the combined image (left) that the image would have to be cropped to the crudely drawn arrows in the below image.
combination1.jpg
I have no idea if this is the correct way to combine this sort of data. It does look like the s/n of the area to be cropped (the combined area) is much higher.
I hope that someone with experience in this process chimes in. I would love to hear how it is correctly done!
Hi Rhoda,
Did you have a comment or question?
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
- Mirrorgirl
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Re: two telescopes on same target
Juno16 wrote: ↑Sun Nov 13, 2022 12:00 pmsorry Yes thanks for your info, Jim I'm taking all on board.Mirrorgirl wrote: ↑Sun Nov 13, 2022 9:53 amJuno16 wrote: ↑Sat Nov 12, 2022 9:45 pm Not sure if this is the correct approach, but it looks like it might be close.
I had some Horsehead/Flame data from 2020 imaged with the Explore Scientific ED102 (571mm) and some Horsehead/Flame data from 2021 imaged with the Sharpstar 61 (275mm).
I simply (for test purposes) added 10 lights from the 2020 dataset and 10 lights from the 2021 dataset into the "Lights" tab of Pixinsight's WBPP. They were both 120 exposure lengths, but if the data was of different exposure times, just separate them with the keyword "EXPTIME".
I used no calibration frames.
The only issue that I had was in registration and that turned out to be that the geometry was different between the datasets. The 2020 data was shot with APT and the 2021 data was shot with N.I.N.A., and I am not sure if that is why the orientation was different. I corrected each of the ten frames from the 2020 dataset just for the test.
The frames registered and integrated fine.
Capture.JPG
These images are the stacked combination (masterlight) on the left and one light frame from each of the datasets (the middle and right image).
Thanks so much for that info, Jim Thank you
Capture1JPG.JPG
You can see in the combined image (left) that the image would have to be cropped to the crudely drawn arrows in the below image.
combination1.jpg
I have no idea if this is the correct way to combine this sort of data. It does look like the s/n of the area to be cropped (the combined area) is much higher.
I hope that someone with experience in this process chimes in. I would love to hear how it is correctly done!
Hi Rhoda,
Did you have a comment or question?
Sky fi wireless telescope controller.. Rebel t3i.. light pollution L XTREME, Idas light pollution filter and Antlia 3nm gold, Antlia h alpha filter filter..other filters .. pixinsight .. startools..
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- chartram
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Re: two telescopes on same target
I do this all the time with data taken through the different scopes/cameras I’ve owned over the years. Matter of fact, a buddy and i just did a collaborative image of the Lion Nebula earlier this year. Shot with completely different scope and camera setups from different locations. I see you use Pixinsight, which is the perfect tool for the job! All you do is use StarAlignment to align the calibrated subs and they should stack without issue. StarAlignmnet is pretty slick about making the geometry match the reference frame . If you need assistance, don’t hesitate to drop a line.
Mike
Scopes: WO Star 71 Gen-II (F/4.9), Astro-Tech AT115EDT (F/7), Celestron 8" Edge HD (F/10)
Cameras: ZWO ASI1600MM w/ Baader 1.25" LRGB & Narrowband Filters, ZWO ASI174MM mini, Starlight Xpress Lodestar X2
Mount: Skywatcher NEQ6 Pro
Guiding: Orion ST-80 (f/5) w/ADM MiniMax (side-by-side), ZWO OAG
Software: PHD2, Sequence Generator Pro, PixInsight
Dark Site Transportation System: 2020 Telluride SX
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Re: two telescopes on same target
@chartramchartram wrote: ↑Mon Nov 14, 2022 2:10 am Hi Rhoda,
I do this all the time with data taken through the different scopes/cameras I’ve owned over the years. Matter of fact, a buddy and i just did a collaborative image of the Lion Nebula earlier this year. Shot with completely different scope and camera setups from different locations. I see you use Pixinsight, which is the perfect tool for the job! All you do is use StarAlignment to align the calibrated subs and they should stack without issue. StarAlignmnet is pretty slick about making the geometry match the reference frame . If you need assistance, don’t hesitate to drop a line.
Mike
Hey Mike,
Thanks for sharing this. I don't know if you read my post #7, but I took a shot at trying this and it looked like it worked fine. The only thing that messed me up was when I initially registered the two groups of lights (StarAlignment), it failed on the first set. I realized that these lights were captured with
I threw all of the lights into WBPP and it took care of everything.
Not sure if I will every use this, but it sure is easy to do in
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
- chartram
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Re: two telescopes on same target
That’s weird. One would think that 180° flip would be no different than aligning subs taken after
@chartram
Hey Mike,
Thanks for sharing this. I don't know if you read my post #7, but I took a shot at trying this and it looked like it worked fine. The only thing that messed me up was when I initially registered the two groups of lights (StarAlignment), it failed on the first set. I realized that these lights were captured with APT and the latter set by N.I.N.A. I don't know if that was the reason, but the orientation of the APT data was inverted compared to the N.I.N.A. data. I corrected the earlier data orientation in PI (180 degree rotation, horizontal flip) and all of the data aligned fine.
I threw all of the lights into WBPP and it took care of everything.
Not sure if I will every use this, but it sure is easy to do in PI!
The best way to do it (in my experience) is to register all of the light frames from all outings to one reference frame then stack them all together, if that makes sense.
The attached collaborative image was taken with different scopes, and different acquisition programs. Just aligned everything to one
Scopes: WO Star 71 Gen-II (F/4.9), Astro-Tech AT115EDT (F/7), Celestron 8" Edge HD (F/10)
Cameras: ZWO ASI1600MM w/ Baader 1.25" LRGB & Narrowband Filters, ZWO ASI174MM mini, Starlight Xpress Lodestar X2
Mount: Skywatcher NEQ6 Pro
Guiding: Orion ST-80 (f/5) w/ADM MiniMax (side-by-side), ZWO OAG
Software: PHD2, Sequence Generator Pro, PixInsight
Dark Site Transportation System: 2020 Telluride SX
- SkyHiker
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Re: two telescopes on same target
I had
- Juno16
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Re: two telescopes on same target
@chartramchartram wrote: ↑Mon Nov 14, 2022 4:15 pmThat’s weird. One would think that 180° flip would be no different than aligning subs taken after
@chartram
Hey Mike,
Thanks for sharing this. I don't know if you read my post #7, but I took a shot at trying this and it looked like it worked fine. The only thing that messed me up was when I initially registered the two groups of lights (StarAlignment), it failed on the first set. I realized that these lights were captured with APT and the latter set by N.I.N.A. I don't know if that was the reason, but the orientation of the APT data was inverted compared to the N.I.N.A. data. I corrected the earlier data orientation in PI (180 degree rotation, horizontal flip) and all of the data aligned fine.
I threw all of the lights into WBPP and it took care of everything.
Not sure if I will every use this, but it sure is easy to do in PI!meridian flip. But I could see where a horizontal (mirror image) flip could throw it off. Wonder if there’s a difference in the FITS header info betweenAPT &NINA .
The best way to do it (in my experience) is to register all of the light frames from all outings to one reference frame then stack them all together, if that makes sense.
The attached collaborative image was taken with different scopes, and different acquisition programs. Just aligned everything to oneHa frame, then stacked each channel’s data as if shot with one scope.
Wierd for sure. I agree that it must be something different in the fits header as they are very different.
Very good practice to register all images to create the SA reference frame.
Not a big issue for me as I don’t have plans to combine different scope data, but its a pretty cool process snd was fun to run through.
Thanks Mike.
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
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