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Title: Comparison of the same area: 2020 vs. 2022
Description: I took the 2020 image with the ASI1600 and the Explore Scientific with FL 714mm, also less integration time. So this is a bit comparing apples with bananas, still ... they must compete since they are both mine 😊.
Uploaded: ...
Title: How I used the Televue 2x Powermate in my imaging train
Description: Actually, I added one more spacer of 3 mm since this was still not enough. I believe I could use even a tick more after processing more images, but well, it is quite close to the perfect distance.
Uploaded: ...
Title: 1850 mm vs 925 mm FL comparison.
Description:
Needed to do the comparison since I was curious what the main difference between a 1x and the 2x Powermate setup is.
Differences:
app 5h with the 2x Powermate (L subs) at bin 2x2, app 2h with the flattener alone at bin 1x1
Identical:
1. Everything else, from the filter to flattener to scope to camera.
2. Processing: Absolute identical steps from the stacked image, same noise reduction routines (to the point), stretching, etc. I processed both images in parallel to guarantee that there will be no changes.
Result: as expected, the stars look much nicer in the 1x1 at 925mm, but I am impressed although not understanding at all that the signal for the 2x looks stronger, I am puzzled. A close look at details shows that the 2x does not seem to be better. Interesting though was that I could not get the same nice image together using the L from the 1x setup and using the RGB data from the 2x, it just did not come out right.
Conclusion: not sure if I continue using the 2x on DSOs. It certainly was worth the try, and in some ways it looks like that it was better to process, but I do not have enough experience with it, hence I still have to wait for more examples. The next image was not that bad either, so definitely not a failed try. Was way more work (at least it seemed like it) involved. With the new filter wheel that might get a bit easier then. I definitely will give the 2x a go for the moon and the planets, this will be interesting!
Uploaded: ...
Title: 1x stars with 2x galaxies
Description: Of course I could not resist to use the stars from the 1x L data and integrate them into the 2x version. I extracted the 1x stars and the 2x stars and applied only the color of the 2x stars (from the previous final image) to the 1x stars so that L suddenly became LRGB 😊. Then integrated them back into a starless version.
Uploaded: ...
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Status | Advanced success |
Started | ... |
Astrometry.net job | 5599964 |
PixInsight job | WKTLW3PIM10VI2TY52RSQEIFYP85NV30 |
PixInsight queue size | n/a |
PixInsight stage | TASK_LOG |
RA (center) | 11h19m50s.988 |
RA (top/left) | 11h18m36s.657 |
RA (top/right) | 11h18m52s.114 |
RA (bottom/right) | 11h21m05s.193 |
RA (bottom/left) | 11h20m49s.954 |
Dec (center) | +13°16′07″.17 |
Dec (top/left) | +13°38′04″.40 |
Dec (top/right) | +12°51′31″.20 |
Dec (bottom/right) | +12°54′07″.76 |
Dec (bottom/left) | +13°40′38″.92 |
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