old_eyes

I think you are right. I took the red integrated master and IntegerResampled it. Not much visual difference although the NoiseEvaluation result dropped from 0.1797 to 0.0998, so it is doing something. But nothing like the effect you saw.

I may try a comparison anyway - just to see what difference it makes

Wow Peter! That is the best Elephant's Trunk I have ever seen! I have the files, so you have set me a challenge (a big challenge!). Did you use software binning on the M16 dataset as well?

9.6 hrs integration? Amazing! Just to amuse us poor plebs - what was the processing time? If we are now in a situation where reasonable amateur kit captures data faster than we can process it, it turns the world upside down.

Very nice @tomato. Looks like there is more nebulosity around the Veil complex. Is it possible to pull more of that out? It is always interesting in these widefield shots to see just how much is going on.

RGB image of M16 - 40 mins each of R, G & B in 60s subs. Processed in Pixinsight. Captured on Pier 9 @Roboscopes in Spain (16" F/6.8 Corrected Dall-Kirkham, ASA DDM85XL Mount, ZWO 2600 MM Pro Mono CMOS Camera). Getting to grips with a new rig, but very pleased with the image for such a short set of exposures.

I used to have this problem, but have switched to PhotometricMosaic. This seems not to have the same issues. I am not sure why it works better for my mosaics, but it does. You have to remember to use TrimMosaicTile to clean up the edges first.

One of my Christmas 2021 stocking fillers was a Solarcan single use pinhole camera for recording suntrails. I tied it to a drainpipe facing almost due south and left it exposing from January 2022 to May 2023. This is the result. I like the way you can see the partially sunny days because you get a dotted or dashed trace. The diagonal lines at the bottom of the picture are the place where we usually park our car, so I suppose the headlights. Some fuzziness around the fixed trees and outbuildings, so I guess the camera was moved about a bit by the wind. A fun thing to do and a great gift for the astronomer in your life (as long as they are patient!).

Welcome @Astrobobo! If you have been lurking for a while you will know the quality and value of the advice and commentary available here. I look forward to your contributions and your images.

Start with the rig more or less in focus and it should work fine. You do sometimes have to jiggle around with the robofocus parameters the first time. The Voyager user forum will usually help you out very quickly (they did me).

@scotty38 solution will work fine. If you don’t fancy re-running WBPP, you can just integrate the two masters as if they were subs. You have to give the ImageIntegration tool two copies of each master, otherwise it thinks there are not enough subs for a successful integration, but it works fine. I have sometimes used it when I have two completely separate runs on the same target that have already been pre-processed. In that case star align to deal with any offsets and then ImageIntegration.

I remember seeing the big print of the earlier mosaic when I visited. A herculean (or possibly orionean) effort. You spoke with feeling about the difficulties of processing the entire mosaic and pulling it all together. It sounded like a bucket list challenge - such as crossing Antarctica single handed or cycling the Tour de France route. Something to dream about and perhaps attempt, but if completed never to be repeated! This image is different but equally fantastic. The OSC gives a very different feel and the dust is much more evident. I like it a lot. Affordable tech and new approaches to imaging keep imaging fresh and exciting. It makes it worth revisiting the same targets many times as each image is different and reveals new aspects. And perhaps most important of all, you and your hardy gang of collaborators keep challenging the rest of us to do better.

Our old friend M31. Nothing remarkable about this image except that this is the first time I have successfully added Ha to an RGB galaxy and produced a result I like. The breakthrough was friends explaining continuum subtraction and pointing me to this tutorial Advanced Narrowband Combination — Night Photons. The fog cleared and I now have some understanding of how to control Ha addition. I produced a whole range of images with different amount of Ha and different colour mappings, but this is the one I like best because it shows the Ha knots in the arms without whacking you between the eyes with it. So just another boring M31, but one that has given me great pleasure. Data from Pier 14 @Roboscopes in Spain (reduced Tak FSQ106 - FL 387mm, ASI 2600MM Pro with 3nm Antlia filters, unguided Paramount MX). 1.5 - 2 hrs each R, G & B, 5hrs Ha.

Lovely delicate image Olly. With these new chips I find myself increasing spending time on OSC projects. It seems easier to get an attractive and interesting image.

The scope is an F2.8 Newtonian, so yes it is fast. The hosting facility quotes SQM 21.5-22.0. It is a different type of measurement and so hard to convert to Bortle, but it would be at the best end of the scale. Say ranging from Bortle 1 to 3 depending on conditions. We still get fog, haze and cloud. This project was supposed to be 4 hours, but I had to ditch half the subs for poor SNR. I am hoping to gather another couple of hours worth to see if it make a better image.

I wanted to do a widefield of the Iris Nebula to pick up some of the darker dust and gas in the area. So this is 2 hours total exposure in 240 sec subs from Pier 5 @Roboscopes in Spain (Tak Epsilon 180, ASI 2400MC Por, unguided Paramount MX). I am not convinced about the red glow to the left-hand side of the image, but it does seem to be in the original data and does not get removed with background correction. But even if that is not real, I am quite pleased with all the colder dust and gas in the image.

If it is a dark nebula, I have not yet been able to track down the catalogue number. It looks OK, because there are plenty of dark dusty channel to the left of and right across the centre of the main nebula. I don't think it is a processing artefact, but who knows what errors I could introduce in processing 😲.

Two panel mosaic of NGC7822 and SH2-170 - sometimes called the 'Cosmic Question Mark' Approximately 3 hours 20 mins exposure in 120 sec subs for each panel. OSC data processed in PixInsight. Data from Pier 5 @Roboscopes in Spain (Tak Epsilon 180, ASI 2400MC Pro, Paramount MX unguided). Although popularly known as the Cosmic Question Mark, I think in this rendition it is more of the Ape's Skull. Strong brow ridges, large eye sockets and a pronounced snout. What do you think?

Got a link? Never heard of that one.

Hmmmph! Fat chance through our solid cloud!

Welcome @LJohnSilver_! Whereabouts are you in the Netherlands? I spent 5 years working in Gouda and living in Scheveningen. Not generally good for anything except casual stargazing, although going down to the beach and looking west over the north sea could be good. I remember showing my kids comet Hale-Bopp from there.

If the welcoming but combative mob on here don't keep the noggin active, there is little hope! Tell us a bit about your stargazing. All visual? What are the skies like where you are? What are your preferred targets?

I posed a question in the Software forum as it is more active, but if you know anything about SPCC and PixInsight, please check this:

Having problems with SPCC locking up the computer I am currently processing OSC images in PixInsight on a Win 10 computer. After calibration and stacking using WBPP, I do a dynamic background extraction followed by SPCC before starting to stretch or do noise reduction. I am working on a linear image. When I start SPCC, it gets as far as "Searching for optimal magnitude limit..." and then hangs. I have left the process running overnight and it is still running in the morning, using a steady 21% of CPU (presumably stuck in an intensive loop). The only way out is to kill the Pixinsight process using the Task Manager. Sometimes it is necessary to reboot the computer to get Pixinsight to start again. The console looks like this: SPCC previously has worked brilliantly, so I don't know what has changed. I am managing at the moment by using the older PhotometricColorCalibration tool, but puzzled. SPCC works better for me than PCC so I would like to use it if I can. I have posted a query on the PixInsight forum, but on the off-chance someone has seen this problem before, I am also posting it here.

Yes, it is a nuisance. New cameras and telescope systems mean that we amateurs can tackle these fascinating fainter, bigger and more elusive targets. The information systems have not yet caught up with our needs. Few of them are in Stellarium or Telescopius, so framing and making mosaics is hit and miss.