Datalord

Wow, that's an interesting story. Yep, I'll have to put that on the list of todo's.

On my tour around the galaxies globular clusters, I reached Messier 56. I didn't know how unique this cluster was. Apparently, this cluster came from a merger from another galaxy and its metallicity is just 1% of the sun's. That places it at 13.7 billion years of age, close to the big bang.

This is a brilliant thread. I've just done a "tour" of the messier globulars and I really didn't think it was possible to see them in other galaxies. Now there is a fantastic reason to point the 12" RC onto M31 when fall comes along.

That would hypothetically require a mount capable of 100kg payload. I don't have that. Yet.

I got the RASA running on a 10Micron GM2000, which is amazing. I shot some Ha with it, which is super amazing. But I have run into the usual thing with my UK setup: So little time of shooting available here and light polluted to hell. So, I thought. With that mount, wouldn't the most fantastic thing be a triple refractor setup with mono cameras, so I could shoot Ha, O3 and S2 simultaneously at the same target? Hypothetically, what would be a good scope/camera combination in the 100-130mm refractor line? Hypothetically...

I really like the background. You managed to use the data present in it. I definitely have to give this another try myself now that I see what is possible.

Ah, those are from starnet++. You can solve those by reducing the mesh, say from 128 to 32, but processing time increases. I usually use starnet to make my starmasks and use 32. On my i7-9900K processor it takes about 15 minutes...

A lesser known sibling to the great Hercules cluster, here's Messier 92. During these clear, moonless summer skies skies, I have decided to go on a tour of the globular clusters. Maybe I will even make a collage of them by the end.

If I'm not mistaken, all of those issues, in the imaging train, would make the patches change position according to the guiding. It would be local to the "frame", not the "target". What I see in the subs is local to the target, that is what is mind boggling. In other words, I sort this out by doing a start alignment on all the subs, then clone stamp them away with the same stamp process across hundreds of subs. These things are local to the target. It's insane!

It's a good attempt, but yes, I think the reason I disliked my version was the "Coffee Table". 🙂 I think this is more what I had in mind in the beginning. Thanks! I really, really like how you made the blue shell visible on both top and bottom. I knew the signal was present in the O3 layer, but I never managed to tease it out. Tried all sorts of trickery with linear fit and masked stretching, but I never managed to get this result. Thanks!

Yes, a G3-16200. It's rock solid -30C all night long. hmm, interesting. But no, it can't be in the imaging train, as it retains its spot in the image, even with dithering. Meaning, it follows the target.

Certainly. I just uploaded those two in the same folder. Thank you! I made a little blunder when it came ot the use of SCNR. I throttled it at 50% in my latest attempt, but with HOO I should just go 100%. DOH! Thank you. I uploaded the ones right out of the stack as well.

I've struggled with the crescent for a year. Last year I had a lot of data on it, but never achieved a result I was happy with. This year I decided to add some more O3 to improve oxygen and utilize my better processing skills. Didn't work. I just can't get the colours right. I only have Ha and O3, but I have about 20 hours of data on each. The subs look fine to me stacked and deconvolved, but I fail. If you try it, please post your result and what you did to achieve it. I would appreciate it immensely. Here's the result from last year: Here's a link to the linear stacked, DBE's, deconvolved subs: https://www.dropbox.com/sh/swyq2bzkjggne3y/AADehllXIJjLCKAOJDhKNAKMa?dl=0

I tried to get this for a SHO image, but my S and O simply were not good enough. So I decided to stop with my Ha and processed it as a B&W. 41 * 600s bin2 Ha for about 7 hours of integration with my RC rig. Now, don't shoot the messenger, but I found this in the image. If noone else has caught it before, I would like to name it...

And, it follows the targets, so it is not something in the imaging train. If it was, it would be dithered out. I'm so confused... 😖

Nope, now it's showing on my Ha as well. Again, varying intensity in each sub, ranging from nothing to very visible.

There's a meme waiting to be born here...

Yeah, that's what I'm thinking. It's only present in O3 and at intervals. It's doing my head in.

I don't know if I should be scared OF Kevin or scared FOR Kevin. It looks like his insides are on the outside. In seriousness, I'm in awe. Crazy amazing work, sir.

The plot thickens. Like pea soup. This is a sequence in blink. Same target, different times of night, patches come and go. What?!

Pretty damn impressive to get this with 10 minute subs on a DIY mount. Do you have pictures of it?

To finalize this thread, here's the mount mounted. And here is first light with a 42 min stack of 3 min subs with an Ha filter.

No, it's the CGX that's in the realm of dung...

Haha, yes, usually 42 minutes is barely enough to get started on my Spain rig. But this one is from my light polluted back yard in South England. Every. Minute. Counts!