Yawning Angel

Thank you! I'll be redoing it from scratch when I add some more integration time, and I agree that there is a balance somewhere between those two.

It's been a few years since I tried the Iris Nebula from my B6 back garden. This is 5 hours of luminance and just over 2 hours of RGB, captured over 2 nights last week. APM 107 / asi1600m / Baader LRGB filters. Processed in PixInsight, including RC tools 3 processed versions. To my eyes and on my screen I'm torn between the Medium and Bold Light Medium Bold Thanks for looking!

Thanks! I see what you mean, yes. A second pair of eyes is invaluable! It's been a tricky one for me, and I'm sure to reprocess it several more times 🙂

Complete for now, 4 panels California nebula in Ha and Sii. Oiii is for another season now, sadly Choose your colour scheme 🙂

Tonight's moon, mono RGB capture at 700mm with an asi178mm. AS!4, Registax, MS ICE and Photoshop

You can see in the image where some of the issue comes from - AS! tracks the movement of features inside the alignment points you set, if the feature moves too much, it looses it's lock on the feature. I'd review the tiffs for outliers where the moon moved significantly and remove them, then restack the remainder with much a much larger AP size and see how it improves But as above, stack before any processing 🙂

The Nikon will produce compressed video...which you can use, but wont be the quality of the ASI, so the Barlow isn't needed. The beermat maths for sampling is an F ratio around 5x the pixel size. The 4SE is f/13, so you need to aim for 2.6nm ish. If you reduce it, the pixel size naturally shrinks too taking you further from ideal (your 224 has 3.75nm pixels). Of course, seeing plays a huge part, so these differences are less noticeable You could go for a asi178, which is 2.4nm too, but your 'best' option for FOV without glass (I'd avoid adding glass if it's not needed) would be an asi585 (or equiv from other manufacturers). The trade-off comes in framerate. The bigger the sensor, the slower they can readout. The 224 is blazing fast, and very easy to get along with

Personally, with those options I'd go for the asi224 without a reducer or barlow, and assemble a 2 x 2 mosaic of any given feature. Its pretty simple using Microsoft ICE (free) to assemble the mosaic, or you can have Photoshop do it...or you can even do it manually If you want to spend money, look at a camera with smaller pixels, to bring you closer to ideal sampling. 2.9nm maybe, from an asi290 / 662 / 664 or 585, depending on budget.

This has had the background cleaned up, stretched and SNCR green removal. BlurX to clean up the elongated stars a bit and then resized because it was insanely big 🙂 Autosave006a.tif Some colour in there, looking at the stars. With some more delicate work, I think the nebulosity might show more distinct colour too

Thank you Patrick!

High praise indeed, thanks Olly!

Thanks! It's almost comedic how we wait for a gap in the clouds, then photograph clouds 🙂

Thanks Lee! Cheers Chris! I have my fingers and toes crossed for change to capture more. 🙂

I managed to at least complete a first run on the Ha for my 4 panel California nebula, continued from here As @ollypenrice kindly pointed out, it's way bigger than my 4 panels cover, however I think the essence is captured? Having only the Ha for now, I've played with a few versions, including colourising (colourizing?) it, as an experiment. Click to enlarge as the images are 11800 x 4300 I'm quite fond of the coloured starless version ais1600mm / APM 107mm / iOptron CEM60. 24 x 300 seconds, Ha per panel for around 8 hours total, processed in PixInsight Thanks for looking!

Thanks! I'd love to expand it however, the skies of Lancashire might make that a multi year project 🤣

I'm slowly imaging the California nebula as a mosaic. I'm 3 panels in (2 hrs per panel), just in Ha so far (4 planned panels) - this is my WiP asi1600mm / APM 107mm Just for a sense of scale, I added my recent moon photo, which was imaged with the same gear With added moon!:

A quick merge of 500 frame RG and B stacks before getting on with some deep sky

That would suggest lens flare to me, the way it moves only if the scope moves

Shot as a warm up before some deep sky, on a shockingly cold and clear night asi1600mm / APM 700mm / RGB 500 frames captures per channel at 2000x2000 ROI.25% stacked in AS!4, Registax, ImPPG to align then PhotoShop to combine (PixInsight is my got to, but it was busy live stacking at that point)

Thank you and good luck with it! I'd never heard of it before last week 🙂 There doesn't seem to be an overabundance of pictures when I searched for it either

Still a work in progress, but I've had so little sky time recently, I had to create something from an unprecedented couple of 'clear' nights The Raspberry nebula - LBM 867 / SH2 263, which I stumbled on while panning around in Stellarium, and thought it fit my FOV 9 hours with an APM 107 and asi1600mm 4hrs L, 2hrs Ha and 3hrs RGB Processed in Pi / PS - may have over done the pink now I think about it

I think I agree with that. It's certainly sharper. Thanks! Thank you! Thanks! It easy to go too far with these 🙂 Kind of you to say, thanks! Thank you! Yes, if the colour balance is green heavy it show up when you push the saturation. Photoshop 'Camera Raw Filter' can fix it with the Defringe tool

Thanks!

Thank you!

Very kind, thanks!