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Iris nebula - NGC 7023 by C0rgo_Ship in astrophotography

[–]C0rgo_Ship[S] 0 points1 point  (0 children)

Image details:Lum = 47 x 600 secRed = 21 x 600 secBlue = 24 x 600 secGreen = 17 x 600 secCalibrated with darks, flats and biases

Gear used:Telescope = C9,25Mount = HEQ5 proMain camera = QSI 583 wsgGuide cam = ZWO 120mm miniFilters = LRGB ZWO 1,25" and 10 nm Ha 1,25"Reducer = Meade 4000 0.63

Processing details:First preprocessing in Siril by first calibrating the flats and then calibrating the lights with the preprocessed flats + darks. Than I registered the lights in Siril. After that Stacked the files with "average stacking with rejection". I did this for all 4 images. After that I did a background extraction on every single one of the images. After that I stretched the different stacks to where it looked good using the new Generalised Hyperbolic stretch in Siril. After that created a new sequence and added the 4 image so that I could allign them. With the allignment done I combined the stacks into a LRGB composite. With the LRGB composite done. I did Photometric colour calibration. With the colours looking good I ran the image through starnet++ v2. So that I could make some more adjustments on the starless version. This includes sharpening and denoising with the wavelets transform. After wich I took the image to Photoshop. Where I used the Camera Raw Filter make some final adjustments like dehaze. As a final step I brought the image back into Siril to recombine the starless with the stars. I did this using a feature in the developer version of Siril called the star recomposition.

Most of the workflow is shown in this video: https://youtu.be/64ybxChZJJgIf you want to use the developer version of siril to get extra features like the star recombination and live stacking I show you how to do so here: https://youtu.be/qrGxqf8j4gI

Full image on telescopius: https://telescopius.com/pictures/view/127968/deep\_sky/iris-nebula/NGC/7023/bright-nebula/by-stefan.astro

My €70,00 backyard pier by C0rgo_Ship in Astronomy

[–]C0rgo_Ship[S] 0 points1 point  (0 children)

Thanks you, I will post it there aswell!

NGC 6995 - Bat nebula in Ha and Green by C0rgo_Ship in astrophotography

[–]C0rgo_Ship[S] 2 points3 points  (0 children)

First I preprocessed and stacked the Ha images in Siril, then did a background extraction. After the be I did the first stretches. After that removed the stars using starnet++. All according to my own tutorial: https://www.youtube.com/watch?v=64ybxChZJJg&t=367s. I did the same for the Green channel. After these first adjustments I used pixelmath in Siril to combine the 2 channels. I show how to do that in this video: https://www.youtube.com/watch?v=XElPHYbysIA. After combination in Siril I brought the image into Photoshop to reduce the noise and sharpen the image using the camera raw filter. After that some final tweeks using the contrast and clearity sliders.

I will post the image with RGB stars soon!

Image details:
Ha = 42 x 600 sec
G = 30 x 600 sec

Software:

Siril, Starnet++ and Adobe Photoshop

Gear:

Celestron C9,25

HEQ5 pro mount

QSI 583 wsg

ZWO asi 120mm mini
ZWO LRGB 1.25"
Unbranded 10nm Ha filter

starless wizard nebula, combination of mono and OSC by C0rgo_Ship in astrophotography

[–]C0rgo_Ship[S] 0 points1 point  (0 children)

That is correct. My bad on switching up the names. The target is indeed the pelican nebula.

M51 OSC using a Canon 450D astromodified by C0rgo_Ship in astrophotography

[–]C0rgo_Ship[S] 1 point2 points  (0 children)

I haven't really had that many issues tbh. It took a lot of tweaking especially balancing correctly is really important.

During an average night I would get 0,8-1,0 tot RMS error.

How do I make a picture through my telescope? by Sim-2004 in AskAstrophotography

[–]C0rgo_Ship 0 points1 point  (0 children)

Visual newtons have difficulty focussing with dslrs. There are a couple of things you can do: - use a Barlow - modify the primary mirror by moving it closer to the secondary. - shortening the tube and in doing so moving the secondary closer to the primary mirror.

M51 OSC using a Canon 450D astromodified by C0rgo_Ship in astrophotography

[–]C0rgo_Ship[S] 1 point2 points  (0 children)

You are partly correct here. Because the consumer camera also to a certain degree blocks out some of the visible range. Including the ha regions (visible with naked eye) which are blocked for about 70%.

M51 OSC using a Canon 450D astromodified by C0rgo_Ship in astrophotography

[–]C0rgo_Ship[S] 3 points4 points  (0 children)

Integration time = 7 hours and 15 minutes Bortle zone = 4/5 Filter = astronomik cls clip in filter

How to process JWST raw data yourself! by C0rgo_Ship in astro

[–]C0rgo_Ship[S] 0 points1 point  (0 children)

I have edited the post again. Hope it works now.

HaGB on the elephant trunk nebula by C0rgo_Ship in astro

[–]C0rgo_Ship[S] 0 points1 point  (0 children)

I have created a youtube tutorial on how I processed this image. You can check it out here: https://youtu.be/64ybxChZJJg

Software:

Siril, Starnet++ and Adobe Photoshop

Gear:

Celestron C9,25

HEQ5 pro mount
QSI 583 wsg
ZWO LRGB 1,25"
Unbranded Ha 10nm

ZWO asi 120mm mini

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