Backyard Astrophotography: Combing Data from two different telescopes

[@avt_astro206]

Cool Photo James! This Target looks Interesting, Actually it gets pretty high where I live. Given that It's a Bright one, I think i can Try it out!

[@DSOImager]

Yea.. give it a go. It's an awesome target :)

[@sevenskiesastro]

That's a really impressive final image you have there James dispite the challenges. That target is too low for me here in London. Clear skies.

[@DSOImager]

Thanks Rob!

[@AstroCrescent]

Nice explanation of the steps in combining data. I really like teh way you go deep into each step. Very well done!!

[@DSOImager]

Thanks!

[@OlliesSpace]

Hey James very nice job especially considering it's elevation. Yes we get plenty of time on this very high. Would be nice to steal Andromeda!! So Low.

[@DSOImager]

Thanks Ollie! What northern targets get up to 30 degrees for you?

[@LogansAstro]

Ha! - stealing one of our best galaxies down here eh! Right, Andromeda is now on my hit list!🤣. Great image James, especially considering how low in the sky it is for you. For me it rises to 78 degrees so tons of time for imaging. But for me to steal Andromeda, well that only gets to 12 degrees here 🙁

[@DSOImager]

LOL! Thanks Logan! I'm curious now.. what Northern targets clears 30° for you? I'm guessing Triangulum is also out. Maybe we should do a data exg, lol.

[@Astrobloke]

very impressive James and well done dealing with all the challenges of a low target. Really like that, Happy New Year

[@DSOImager]

Thanks Glenn!

[@AstroOnBudget]

Thanks James for such a clear presentation! Very helpful

[@DSOImager]

Thanks Chad!

[@donheff831]

Thank you. Your video helped me take some very poor data on a comet to the next level.

[@DSOImager]

I'm glad the video helped. :)

[@AZ4Runner]

for ot being one of your best images.. I think it looks just fine.. Blows any of my stuff away!! CS and happy new year!

[@DSOImager]

Thanks Jason!

[@dumpydalekobservatory]

Galaxies are always my favourite targets so looking forward to when galaxy season starts, I think it still turned out great though James. Happy new year & clear skies!!

[@DSOImager]

Thanks Tich! I still favor large emission nebula.. but Galaxies are a close second for me :)

[@easyastroimages5818]

Damn there’s a lot going on with this one man! You pulled it off. Maybe a future remote observation for you??

[@DSOImager]

Thanks Chad. Man, I would love to have access to a remote obs in the southern hemisphere but that's way out of budget. :)

[@JonnyBravo0311]

You are far more patient than me. I've had luminance data look similar to that, and I toss it. I don't bother trying to do anything at all with it. Oh, I'll curse and shake my fist at the astro-gods for screwing up my data... but ultimately, deleted. My skills at clone stamping are ... well, maybe "skills" is giving me too much credit :P.

[@DSOImager]

lol! Oh I have a data that looks worse that has been given up on. I got lucky in that none of the problems impacted the actual galaxy.

[@Chris_NGC6188Ara]

Happy New Year James..

[@DSOImager]

Same to you Chris!

[@starsips]

In the Southern Hemisphere it reaches >80degrees around late August/early September. It gets pretty high in the sky for us which is nice

[@DSOImager]

That is nice.

[@chrismcgrew4692]

Is there a benefit of doing it this way vs. stacking everything together in WBPP in the first place? I would think that would be a better result than doing a star alignment after already running WBPP. Your thoughts?

[@DSOImager]

I tried it out with everything in a single WBPP and the cropping didn't work too well. Stacking the separately gave me a little more control. I'm pretty sure the registration step in WBPP is doing the same star alignment, so I don't think there's much diff in regards to the quality of the stacked images.

[@chrismcgrew4692]

@@DSOImager I've been working on this very issue. I shoot 2 scopes of very close focal length, with 2 cameras that are the same (2600MM) but WBPP keeps completely rejecting all the frames from one of the data sets after the 'measurements' phase. Same exposure length too. Not sure what I'm doing wrong, but I can't get WBPP to process all the data. Any tips?

[@DSOImager]

@@chrismcgrew4692 In my case the scopes were very different focal lengths (644 vs 1422). And since the 1422 was all lum, and the 644 was all RGB, simple star registration was all that I needed. In your case.. would probably be best to stack the data from the two rigs separately, like I did in this video. You mentioned 2600MMs, so I'm assuming each set of data is has the same filter types.. and that you are wanting to stack everything together.. I'll use Lum as an example. Lets assume "cam1" is the primary set. Register cam2 lum to cam1 with star alignment. Then take both, Lum1 and Lum2registered into deepsky stacker and stack both of them. Now you'll have a master stacked Lum channel that is pretty much the same if you stacked it all individually like you're trying. The reason for going to deepsky stacker is PI won't stack less than 3 subframes. After that, rinse and repeat for your other filtes. Then proceed as normal. If my assumptions are correct, that should get you going. Let me know if you have any other questions.

[@chrismcgrew4692]

@@DSOImager Deep Sky Stacker isn't an option. I'll need to figure this all out in PixInsight. Thanks for the tips - I'll give them a try.

[@chrismcgrew4692]

@@DSOImager For clarification, one scope shoot L and the other RGB, or one shoots H and the other O and S, in my scenario.

[@rameshtahlan]

hi, I was not able to follow what you did in the first 6 min, so had to discontinue watching it. Request if you could make another vide with some more steps in between, I want to definitely learn how to do this, as I have two Scopes, WO GT81 and WO FLT132. Both fully operational. I guess I need a video for Dummies.

[@DSOImager]

Was it the part about getting the data from the two different scopes registered? Are you using OSC or MONO? What data from the gt81 and what data from the FLT132 do you want to combine?