Sure thing :)

Ah ok, so I assumed you registered all your light frames onto your stars as your stars look very sharp. And that’s the normal way for every astro image you would normally do. A comet however moves so fast that its position changes even in the short time frame were you took the images.

So after registering all the images with the stars pattern you want to make a second registration were you mark the position of the comet on the first frame and on the last frame. With that now all images are aligned onto the comet and now the stars appear to move in the background. As your stars look so sharp I assumed you didn’t make the second registration. In DSS there is a comet mode for that but I haven’t worked with that so I can’t tell you about the workflow with that program.

Hope that helped in any way!

I do not have much experience with DSS, as far as I know the result should be very similar. „Lights“ is the term for a single exposure. The technique is basically the same no matter which software you use.

But if you have Siril specific questions feel free to drop any questions :)

It‘s hard to tell from your image, bit it appears you can even get a bit more details if you register your lights onto the comet itself and then stack all the images. I used Siril for the two step registration process.

But nice image nonetheless!

Cool thank you!

Lets see what the next days will bring. As the comet rises higher maybe it will be even more visible.

Your image looks not to bad either. On my phone the comet looked the same like yours.

Thanks for answering! Yes the comet moved quite a bit, but I stacked two images. One for the stars and one for the comet were I registered the images onto the comet itself. So the stream seems to be a real feature of the comet.

The comet is also visible on one single exposure as it is very bright. It was also visible to the naked eye. But stacking reveals even more details because it improves the signal to noise ratio. Also stacking helps removing unwanted objects like satellite trails, planes or moving clouds.

Thanks!

I use uYou plus. It has to be installed via Altstore (which means you have to resign it once a week with a computer needed in the same network).

But it has the best features:

• Adblock
• Sponsorblock (automatically skips sponsor segments in videos)
• allows pip playback
• shows estimated dislikes again

Dank dem Gesetz haben wir nun endlich auch ein BKW. Unsere Hausverwaltung hat in der Eigentümerversammlung angekündigt, dass ein Ablehnen in Zukunft nicht mehr möglich sein wird, und so konnten alle Parteien überzeugt werden. War trotzdem ein langer Kampf, und ohne diesem Gesetz unmöglich.

Ich hoffe das wird vielen anderen genauso helfen.

Thanks for sharing! The software worked better than expected on your image!

On my research before purchasing the program I also stumbled over your linked forum post. However I found it very misleading, as the software does not generate details learned from other images but only works with data already in your image. As it is a deconvolution tool results can deviate slightly from the true nature. But that has little to do with AI being used here. I needed a whole semester at university to truly understand the maths behind it. My biggest problem is that the software isn’t open source so one can’t look into all the details. But there are already people working on open alternatives.

But this already is a very specific problem, don’t forget that the biggest difference for good quality makes the data itself. I wish best of luck on your journey!

Oh and I forgot to mention that one other advice I would give is to search the darkest location to shoot from that you can access. Lightpollutionmap really helps with finding such places.

Edit: unstreched file with only background extraction and deconvolution: https://drive.proton.me/urls/QD4870ZMF4#uyVBYxKgWxgb

For untracked this looks not too bad. To improve I would do the following:

• in Siril: remove green noise, then photometric colour calibration
• reduce exposure length to 1s
• work on background extraction (maybe try GraXpert)
• if you are not already doing: take calibration frames, especially flats

Are you interested in sharing the raw stacked file? I use a (paid) deconvolution tool called BlurXterminator and I wonder if it can handle such extreme star shapes. If it works I will of course send you the file.

In amateur astrophotography narrowband filters are used to reveal interstellar ionized gas clouds. In this case you can see hydrogen nebulae as red blobs in the spiral arms around M31.

Well for the high cost, apart from producing them is technologically challenging, it is just simple economics. The market for these filters is still small compared to other things, so the price must be higher to compensate production and development.

Tl;DR The EU makes sure that third party developers gain access to connectivity features to develop devices like smartwatches, headphones or VR headsets that have a deep integration to the OS.

It is crucial that the request process is transparent, timely, and fair so that all developers have an effective and predictable path to interoperability and are enabled to innovate.

Thanks!

No not for this target. As I use a dual narrowband filter I‘ll always get OIII as well, but as you said in this case it just shows the normal continuum. I shot this data to combine it with RGB in the future, but I liked how M31 looks with just narrowband so I wanted to share anyway.

The equipment put together:

I couldn’t agree more, thank you for sharing so much information!