bottletopburly

Beat me to it Just about to link your tutorial http://download.startools.org/Siril with Sirilic.pdf

I think I did I would need to check I usually use the isolate module , 2nd process due to flats problem so re stacked without flats and used bias as darks in Siril scripts no flats , came out a lot better just need more data if I can get another 8hrs 🙏🏻

@Notty this may be what you want https://deepskydad.com/laf

Get this first https://www.firstlightoptics.com/books/making-every-photon-count-steve-richards.html whats the rush

Iris nebula 4hr X240sec subs , 200pds Nikon D5300 stacked in Siril processed in Startools 1.7 @jager945

You’ll want a polyurethane sealant they do black or white can be over painted once cured far better than silicone , wear gloves as it’s a pig to clean off hands we use it in the marine industry very strong and waterproof can be sanded once cured too unlike silicone . something like this https://www.toolstation.com/puraflex-40-high-modulus-pu-sealant-adhesive-300ml/p67949?store=I6&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&gclid=EAIaIQobChMIyoHWqcH36gIVze3tCh1IpwOJEAQYASABEgLKWfD_BwE

It’s all to do with signal to noise you gain nothing with a higher iso ,assuming the D5000 is iso invariant .

I have just put a 500d into a camera shop for sensor cleaning hopefully they’re better than me at doing it Cost £30, you could try increasing exposure time on flats maybe.

Hi try dropping iso to 400 for better dynamic range http://dslr-astrophotography.com/iso-values-nikon-cameras/ ,and more data try for at least 4hrs min the more the merrier and try longer subs if possible i tend to use 240 sec subs

Be careful cutting tube back as too much will cause tube to roll off runners before hitting tube stop , I got a 130pds where this had been done now fixed though only need about 10-15 mm off .

Ic 5076 reflection nebula approx 4hrs data Nikon d5300 sw 200pds

I usually platesolve from home though I have read best not to though never had a problem, you can manually slew off home position then platesolve and sync .

Anywhere

Start off by imaging the sky and blind plate solve , once image had successfully solved , sync mount , then use go to++ choosing an your object from the Apt list , then let Apt do the rest it will put object within a few pixels

Look here all you need to know

If you use a Baader cc you can screw on the end , I had an old skywatcher 2” filter I unscrewed from outer ring and screwed to the m42 thread of the T-ring just buy a spare T-ring so you don’t need to take back out .

Try using the scripts in Siril ,very easy , just use the script that suits your imaging .

You would probobaly benefit from a Duoband filter but way over budget keep saving https://www.firstlightoptics.com/light-pollution-reduction-imaging/optolong-l-enhance-narrowband-deep-sky-imaging-filter.html

My guiding usually a bit like yours shown , thinking maybe it was the mount , then last session on the eagle nebula I guided at 0.30RMS ,Graphs was near flat exposure I had down to something like 1sec usually I was using 2-3sec maybe it was a combination of things being right seeing on the night was very good , maybe on the night conditions weren’t favourable for you , I use the predictive Pec algorithm on my Eq6 belt mod mount .

Excellent results well done victor 👍🏻

After each stacking session Your left with. Stacked Il fits image ,it’s each final result you stack together , you’ve already applied sigma tacking etc to get the stacked fit , I found it to work very well , you could also use sirillic to process and stack all data rather than use the scripts , tutorial below . http://download.startools.org/Siril with Sirilic.pdf

Try this if I have got it right ,Every stacking session gives you a stacked fits file ,add a number to fits file name 1,2 etc so you know what files what , you create a folder and store these fits files you want to merge , then in registration tick match stars make sure the working directory path is pointing to folder with fits files you want to stack , then go to stacking tab and select go stack , that’s it you’ll be left with a single fits file of all sessions .

You stack the final stack from each night I’m sure I have written it down somewhere will see if I can find it can’t remember off the top of my head .

Possibly off the filter try without

Cheers for the info 👍