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About Quaternion

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  1. A Magnificent Saturn.

    Incredible detail, color and image scale, with very little noise. Do you proces the rings and disk separately? How many frames did you stack? Thanks for sharing.
  2. insight-astronomy-photographer-year

    Congratulations !!!
  3. Saturn 30-08-17

    Same Orion XT10i, TV 5x Powermate, Baader UV/IR Cut Filter, ASI224MC, PA-ADC, Homemade EQ Platform
  4. Saturn 30-08-17

    Awesome. The color has definitely improved. I went from the first image (2016, 30deg)to the second image (2017, 29deg) with a PA-ADC, though I've also gotten better at my planetary imaging techniques ( see Polar Hexagon post)
  5. Saturn (IR-RGB) 5 July 2017

    Very nice. I ca definitely see a hint of Enke's Gap and the C-ring. I've never tried my 610nm on Saturn with the ASI224MC. Maybe it is worth a shot. Thanks.
  6. Saturn 30-08-17

    Nice !!! If you look closely at your image, you'll notice a red fringe on the bottom of the rings and a blue fringe at the top. You can use a Pierro Astro or ZWO atmospheric dispersion corrector (ADC) in the imaging chain to help eliminate this at your low elevation angles. While not perfect, you can also use the RGB Align function in Registax to do this with your existing data.
  7. Increased the saturation on Saturn by 67% to improve the color rendition of the ZWO ASI224MC camera.
  8. Thanks. It was at 29deg here in Virginia, USA. However, I have never seen the Northern Lights ...
  9. Excellent seeing enabled me to capture my sharpest image yet of Saturn on Aug 1st. You can clearly see the A, B, and C rings, Cassini's Division, a hint of Encke's gap, cloud bands on the planet, and the shadow of Saturn on its rings. I also managed to resolve the odd hexagon shaped storm on the North Pole, which was first imaged by the Voyager spacecraft in 1981. I made a polar projection plot from the data, with some WinJupos help from Kokatha Man, so you can sort of look down on North Pole to get a better view of the Hexagon... maybe that's where the Saturnian military headquarters is located 😀 I've also included a shot of my Orion XT10in Dob, a.k.a. "The Cloudmaker", riding on my home made EQ platform, a.k.a. "The Sky Slower" 😏
  10. Thanks for all the nice comments.
  11. This is the best planetary image I have ever taken, which may not say much, but I was pretty happy with it. This time I managed to get the primary to within 1 degF of ambient AND I managed to adjust the Pierre Astro ADC levers. When I went to do an RGB align in Registax, the automatic estimate came back with no adjustment necessary, so I must have nailed the ADC. However, I was so excited about the ADC, that I forgot to collimate !!! So I believe I still have some more room for improvement. Capture Details: - Seeing = 4/5 (Good) - Elevation = 43 deg - UT = 03:56.7 - CMI = 328.2 deg - CMII = 279.8 deg - CMIII = 44.1 deg - Image generated by stacking 20% of 5636 frames (90sec @ 62 fps with ASI224), RGB Align/Balance and Linked Wavelets in Registax. - Equipment: Orion XT10i, Televue 1.15x Paracorr II, 2.5x and 5x Powermates, Pierro Astro ADC, Rigel nStep Focus Motor, Gosky Bahtinov Mask, ZWO ASI 224MC, Canon 70D, Baader 570nm and 610nm Filters, Modified EZCBP Equatorial Platform, Stellarvue F50M2 Finder, Glatter Green Laser Pointer /Orion Bracket
  12. The focus was soft, the seeing was average, and I could not figure out the ADC, but still can't believe I took this image in my backyard !!! Maybe next year I'll resolve that Polar Hexagon...Thanks for all your help on this forum.
  13. Thanks, Peter. I don't know much about color balance and curves, and what Mars Colors should look like...how do you get started?
  14. Hi, Work travel and summer family events prevented me from actually processing and posting this image of Mars I took back on 21 June 2016. It is a 5x60sec stack of the best 5% of the images I gathered with an ASI224MC and Firecapture. I haven't been able to get WinJupos to work on Mars, so I just stacked everything using AS!2. I used the RGB alignment tool in Registax, where I also tried my best to sharpen with linked wavelets, without adding too much noise. Stacking lower percentages limited the sharpening, but it was just better data and yielded more detail. I THINK I can see hints of some of the blue clouds you experts have shown us on this website, but I might be imagining them. I'm also not sure which way the poles are aligned in this image, so perhaps one of you experts can help me figure out just what part of Mars I imaged? I shot the video at a 9240mm FL, with a 254mm XT10i dobsonian, using a 5X Powermate and extensions to bring it up to 7.7X. This yielded a highly oversampled 0.084 asec IFOV, for my ~0.45asec diffraction limit (airy disk FWHM). I know this was probably too much, but it did make the image bigger, and bigger is always better right . I could never figure out how to get the PA ADC working, so it was set to null position and used as a lowly spacer. I was bummed, but I will try it again on Uranus. I used a Bhatinov Mask to focus on a nearby star, and a Rigel nStep to drive the focuser in very fine increments. Collimation was handled via a Howie Glatter laser alignment tool, because I still can't seem to figure out stellar collimation. In order acquire and center/align Mars in the tiny FOV of the ASI224MC, I switched to a Stellarvue F50M2 finder, which accepts normal eyepieces. I added a 2X screw on Barlow to raise the magnification of the supplied illuminated reticle eyepiece to about 20X. I also came up with a green laser polar alignment jig for the EQ platform, and found that I could do some hand manipulation of the single axis pot to hold Mars in the FOV for 60sec or so. I know most of you are well beyond me in terms of astrophotography knowledge, but just in case these tips help another "lowly Dob owner" who wants to try planetary imaging, I thought I would mention them. Thanks again for all your help here on Stargazers Lounge.
  15. Saturn 16th May