Adam1234

Thanks!

Rosette Nebula taken in February over several nights around the full moon from a Bortle 8 area with light pollution, so I'm really surprised how it turned out. Ha / Oiii (300s) = 4.2hr / 2.9hr R / G / B (60s) = 3.9hr / 3.3hr /3.3hr The first image is NB + RGB (Ha added to red data and Oii added to blue and green) The 2nd and 3rd are HOO, the 2nd one (I think has 20% Ha in the green channel Adam

Hi Graham, dark flats (or flat darks i think is the proper term) are basically darks, but for your flats, so exactly the same settings as the flats but taken in the dark. I don't know the reason why, but it is apparently better to calibrate the flat frames with dark flats rather than bias when using CMOS camera.

Absolutely amazing!

Incredible! Well done, I love the colour and detail

Lovely image well done

Incredible!

First one it is then!

How's this? I undone the noise reduction (as I suspect that was what caused the degradation in clarity of the bubble), then lessened the effect of the star reduction by blending the image with no star reduction with the image with star reduction in PixelMath

Very nice image

Thank you Carole!

Thank for pointing out! So the difference between the 1st and 2nd is that the 2nd has some star reduction and some extra noise reduction, so I expect that the extra noise reduction has affected the clarity of the bubble - I will undo the NR this evening and see if that looks better!

Nice one

Thank you!

I've made a slight adjustment to the image - reduced the star presence following Light Vortex tutorial (I always struggle with star reduction but found that tutorial very helpful), and applied some TGVDenoise also - not sure if I've have overdone it with the TGVNoise though. Hopefully it's an improvement!

I've finally managed to process an HaRGB image of the Bubble Nebula (NGC 7635) in Cassiopeia that I started back in November last year but couldn't process as I'd never got round to capturing any blue data due to clouds. Well I now have some blue data that I captured a few weeks ago so have been able to put together an image. Not sure I'm 100% happy with it (I don't think I ever am quite satisfied, but that's what I get when I try and compare my images to other peoples!) but considering I live in a light-polluted Bortle 8 zone at best, probably bordering on Bortle 9, I suppose it's not bad at all. Integration (total 6.9hr) Ha = 50 x 300s (4.17hr) R = 45 x 60s (0.75hr) G = 60 x 60s (1hr) B = 60 x 60s (1hr) Equipment: SkyWatcher ED80 DS-Pro + 0.85x reducer, EQ6-R Pro, ZWO ASI1600mm pro, ZWO filter wheel, Evoguide50 + ZWO ASI120mm mini (guiding) Captured using AstroPhotography Tool and processed in PixInsight.

Nice shot!

Fantastic

Lovely image Carole

HI Brian, I like the idea of the flip flat, do you have a picture? Must have been frustrating having to shoot flats every night, especially when the nights are short and/or you want to image with multiple filters on a night. I'll hopefully be able to tell you next week if I've been fortunate - I done some imaging last weekend but haven't got around to taking my flats yet. I'll let you know how it it turns out!

Received the birthday present to myself today - Samyang 14mm f2.8 mkII 😀

The cake tastes lovely! Almost a shame to have to eat such a lovely cake!

Thanks for the birthday messages all!

It's my 30th birthday today and as such my fiance had this astronomy themed cake made for me!

Nice one! Glad your settling in with the new gear! I look forward to seeing your final image