Space Cowboy

Super images with lots of cloud detail!

Similar cloud structure to these : https://www.cloudynights.com/topic/875861-venus-in-visible-light-ir-742-pass-and-red-610-pass/#entry12690766

Ok Neil 👍 Seems 16GB is not enough memory to drizzle a 4K colour sensor. 99% memory usage on my laptop with a freezing screen. Its not all a bed of roses with the big chips.

Ok, just thought I'd mention it. 🙂 Just been comparing the shot I took on 1st May. Interesting seeing the difference the shadows make in that region, yours being longer. Might try drizzle myself provided the 10000 alingment points dont vaporise my processor. 😮

Lots of detail again Kostas. Interesting texture on the UV image making the cloud formation almost look 3D.

Tremendous rille detail Neil! I can see you've pushed that one quite hard. Not sure if its my monitor but I can see halos inside the craters?

I've added the individual UV and colour shots to the original post. The colour shot was down at 23 degrees and seeing had worsened.

Ok, I made a boob. The horizontal lines in FDomain were from borders on the image I'd forgotten to crop off. Mentioned it to Neil and he said straight away lol

I would happily kill for an exposure of 6-9ms lol The noise data I got on FDomain was horizontal lines which produced onion rings when cleaned up. Rotating the image to the horizontal changed the noise appearance to random noise which cleaned up as normal. I'm guessing it's to do with the crescent shape of Venus and the particular angle I captured it at (45 degrees) and also the weak signal. Or the bloke staring back at me 😉

Thanks Neil! Certainly surprised me after my initial processing but once I got the noise under control with dyadic that face popped out 😱

Thanks Neil. Venus is throwing up some surprises.

Thanks Kostas, yes I think it is my best in a bizarre way! Just thought I'd try OSC instead of IR but I only used the colour shot as red with UV blue and L. I could try splitting the colour into RGB with UV as L. Noise was terrible as signal was weak because of the haze and had gain at over 90%. I ended up combining three 3 min runs into one 9 min capture producing 9500 frames of which I stacked 50%. Initially I couldn't control the noise level after using dyadic so tried Linear but noise was still there and detail less pronounced. The break through came when I rotated the dyadic image to this posted orientation which allowed FDomain filter to clear up all the noise without causing artifacts. Didn't need any noise reduction after that.

Good seeing last night though sky was hazy. Down to 16fps in UV. Finished off with OSC. Combined UV & RGB for false colour. LOOK AT THAT FACE! Is it William Shakespear? Auto Dob 250 + 2x ultima + ADC + Ext = f15. QHY5L-ii mono + bessel U & QHY5-iii-585c.

Did a few tweaks. Noise reduction and increased colour vibrance. I know the colour is a bit OTT but I love the way it brings out the contrast and detail.

Your outstanding results have certainly influenced my purchasing decisions. 😉

Thanks Kostas, the cloud rolled back in before I could try UV. I've ordered the QHY5-iii-462m so will hopefully have it by the end of the month.

Ran this through PIPP :

Cloud cleared for a few mins when Venus was in the low 20s. I was experimenting with the 2x ultima and ext tube plus ADC which produced f18 when fully extended with the QHY585 so should be able to hit f15 with the cam fully inserted.

Thanks Mike! Why are you struggling with the QHY?

Surreal! Remarkable images again Kostas!

Just a IR/UV cut filter. I only stacked 15% of frames. Hoping to get a full Lunar mosaic at f15 in colour which is one of the main reasons I got the 585 chip.

Colour Lunar shot with the QHY5-iii-585c :