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Between the clouds, moon, neighbour's roof, nearby floodlights, and all the usual general life stuff, i've simply not been able to get any meaningful data on the HH (or Orion for that matter either) for the last 2 years! To say it's been my nemesis would be an understatement. At this rate i'll be glad to have that box ticked proper before i hit 50 ?
So when we had a few hrs of clear sky (and no moon) a couple of weeks back i knew i had to give it a go. I luckily managed 9 x 7mins before it disappeared behind the neighbour's roof. I also have 5 subs of Ha (90 mins in total) from last March, although it wasn't of great quality (there was a nearly full moon right beside it, plus the neighbour's fire smoke was billowing up through the Fov ? ).
I've been waiting patiently for more clear skies to add to this, but that 's not working out too well, lol. I really shouldn't be processing this, but all work and no imaging makes Ciaran a dull boy, so here goes nothin...
9 x 7mins with an IDAS-D1
4 x 1200s and 1 x 900s of Ha
~2.7 hrs in Total
Stacked in APP and processed in PS. Lots of heavy lifting needed in PS, and i've reduced it to 50% in size as well.
For now, at least, this will have to do. There's a lot of good HH's about so hopefully this one's not too hideous! ?
I'll post what the 2 raw stacks looked like below as well, just for kicks.
Here's the 9 x 7 mins raw stack (with DDP stretch):
And here's the ~90min Ha raw stack:
Tried capturing M42 and horsehead nebula last night with my new Astro-modified EOS Rebel XT. During post processing I noticed these weird spots and lines across the image. Would you happen to know if this was because of the mirrors of the telescope (i.e. dirty mirrors) or is something wrong with the camera? What's weird is that this 2 images were taken with the same exact camera at the same exact position but some artifacts visible on M42 did not show up on the horsehead nebula.
Btw I checked the mirrors of the telescope but I cant find the weird long spots
I've been sitting on this data for quite a while (it's from Jan 2017). I've had a few goes at trying to process it, but always junked the results - mostly because of Alnitak!
I've bitten the bullet and just posting it here to try and draw a line under this lot (and I've not done much else recently - illness and summer light nights...). Flare and scattered light in the field hasn't helped me and there's a bit of fringing with the brightness of the star. I have since cleaned the objective on the FLT110 as it was filthy, and I may have struggled with transparency, but I'm not sure what else I could do here to bring out more detail or contrast into the image with Alnitak sitting in the field - it just feels a little "soft" ?♂️. It also throws the colour balance off a bit - I think this is an Ok version, but the Flame is perhaps a little on the red side.
ST2000XM + FLT110 (with FR at f5.6).
LRGB : 29x5m, 25x5m, 17x5min, 15x5min (RGB 2x bin)
Captured Jan 2017
This is the Ha (15x 30 mins with the Chroma 3nm) to go with the LRGB data I used here:
I haven't managed to satisfactorily incorporate it yet, I think because it's a lot stronger than the RGB and it reddens the image too much (and overwhelms a lot of the brown dust which I want to preserve). Ideally I'd increase the amount of LRGB data substantially to help with this but it's too late for that now this year; guess I'll have to work on my processing skills a bit more. Will also try to rework the stars in (L)RGB to tame them somewhat.
Field around the Horsehead Nebula bordering up to the edge of M42. I wanted to try to bring out some dust below the Ha region but ran out of time to deal better with the crazier stars. First time I've processed the Horsehead without any Ha data added (will have a go now I've done the LRGB only version for this competition).
L 42x5min, R 16x5min, G 16x5min, B 25x5min, taken in December 2017 and January/February 2018 with a Takahashi E-130D on Avalon Linear mount with Moravian G3-16200 mono CCD. Processed in Pixinisght.
Hope you enjoy!