图像处理小技巧
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AstroSingularity
Any tips or good tutorials to help process.?
The first photo is my attempt and the second one is my end goal I got some data sets off of telescope live to practise processing I did a pretty good one for the rosette nebula but I'm struggling on this one (the cat paw nebula) and I can't seem to find a YouTube video that is good what I specifically need so if anyone knows a YouTube video that can help me or any tips that would be great. I use siril or dss for stacking I use graxpert and adobe photoshop and the files are halpha, OIII and SII
Kajcho
Beginner tutorial for stacking S50 images on Mac OS?
Hi everyone. Newbis astro photographer here. Can you recommend beginner-friendly tutorials for stacking pictures on Mac OS? I tried following tutorials for Siril, but they weren't really Seestar S50 relevant and I was missing some steps described in the video.Any tips are appreciated.🌌
Elliot
Anyone have a good editing app?
Does anyone have an editing app (preferably free) that I can use on my iPhone? Don't have a laptop or a tablet to send stuff to and I'd like to have some of the colours and detail pop out more than what I can get through the deep sky stacking on here.
G.Quatraro/Bologna
S50 subframe calibration with darks and flats
There is still one thing that is unclear to me: Does SEESTAR S50 automatically calibrate each subframe with dark and flat frames?If not, what do I need to do to ensure that both calibrations are performed? Thank you for your reply. Gianpaolo.
Cineman
How do you obtain the blue tones?
Hello! This is my first post, and I'm a complete beginner. I'd like to explain my problem using IC405 as an example. I'm having trouble preserving the blue tones and have tried various techniques. Raw data: One series with L-Pro and one with Antlia ALP-T 3nm. In image 1, I applied a luminance mask (Ha of the Antlia ALP-T data) to the L-Pro data and selectively boosted it. In image 2, I split each series with StarXTerminator and merged them according to their weighting. In image 3, I additionally applied a blue channel mask from my nebula image in image 2 to image 1 and boosted the blue tones.I hope that was clear. How do you approach this type of object?
forcy90
GRAXPERT CON IMMAGINI DEL SEESTAR S50 FUNZIONA ????????!!!!!!!!!!
Buongiorno a tutti, ho un quesito da porvi ovvero, seestar rilascia solo LIGHTS ma Graxpert vuole anche darks, flats e Bias, quindi le immagini del seestar non possono essere processare da Graxpert???? Sono nuovo nel settore e grazie per la comprensione 😅😅
Steve Inglis
PC Spec For Post Processing using Pixinsight and or Seti AS
Hi folks. I am just about to start doing some Post Processing of my captured Seestar images. My question is around what spec PC should I use for post processing. I am thinking about using either Pixinsight or Seti AS as my main software to accomplish this task. When I see YouTube videos of pist Processing, there seems little time spent Stacking, layering etc in these videos. So I ask myself what spec are these PC's that chew through Huge numbers of images seemingly very rapidly So my question is what spec machine will be able to handle/process these intensive tasks. Currently I have a Dell Optiplex i7 Intel, 16GB Mem, 500GB SSD and integrated graphics. The monitor is a 43in high spec IPS panel. Any thoughts would be welcome Oh and not a large budget to work with Cheers Steve I
Superstar
hubble-like astro-image
How can I make hubble-like astro-images with seestar S50? From S50 we get only the image filtered by UV/IR-cut. It doesn't have the OIII and SII filters. Therefore it is not possible to make the hubble color from the point view of hardware. But maybe image processing can provide the possibility. I think we can have a good discussion here. Thanks in advance.
nonplayable
Dark Library = Free Noise Reduction
Matched darks reduce fixed-pattern and thermal noise before you even touch denoise. How to build:• Capture 20–30 darks per exposure/temperature combo you use (e.g., 10 s @ warm nights, 12 s @ cool nights).• Same exposure/gain as lights; cover/cap the optics to block light.• Refresh seasonally; retire old masters if your ambient temps change a lot. Benefit: cleaner stacks → lighter denoise → better star color and faint dust retention. #Calibration #Darks #Noise #Astroimg
heneypeter
Any advice for First PC Build for processing
Hi all after some advice for my first PC build- Looking at using pixinsight and siril for processing- what sort of build should I be looking at and what could you recommend parts wise- this build will just be used for stacking processing - so no gaming and also looking at future proofing it thank you
nonplayable
Managing Field Rotation Like a Pro
Alt-Az mounts rotate the field fastest near zenith/meridian. Rotation softens stars at the edges and costs you crop. Keep it tight:• Favor targets at 40–60° altitude when possible.• Near meridian: keep subs ≤12–15 s.• Leave 5–8% framing headroom for later crop.• Re-center/plate-solve every 20–30 min to keep the subject in the sweet spot. Pro tip: if edges look smeared but the center is sharp, you’re seeing rotation—not just tracking. Shorten subs, increase stacks.#SeestarS50 #FieldRotation #Framing #AltAz
nonplayable
Why Total Time Wins (the SNR math)
Signal-to-Noise Ratio improves with the square root of integration time: SNR ∝ √T. That means doubling minutes gives ~1.41× cleaner data; 4× minutes ≈ 2× SNR. Practical takeaways:• Chase total minutes, not heroic single-sub lengths on Alt-Az.• One target/night usually beats hopping between 3–4 targets.• Use a consistent rejection rule so extra time isn’t diluted by bad subs.Example plan: 12 s subs × 600 frames = 120 min; expect noticeably smoother backgrounds and easier color work. #Astroimg #LiveStacking #SNR #SeestarS50
nonplayable
Optimal Sub Length by Sky Brightness (Alt-Az reality)
Rule of thumb: shorter subs, more stacks. Field rotation + bright skies are the limit.• Bortle 8–9: 8–10 s subs• Bortle 5–7: 10–12 s• Bortle 3–4: 12–15 sAim for 60–120 min on bright targets, 150–240 min on faint ones. Keep star FWHM/HFR consistent; reject subs > 1.5× your median. #SeestarS50 #EAA #ExposureTime #Astroimg
Rnadoc
I have a Seestar s50 I process my images in sril but I can’t make it look good?
For example a picture made in sril @Friday666 is the maker of the picture
G.Quatraro/Bologna
CONTEXT: OVERRIDING BAYER PATTERN SETTINGS WHEN STACKING "LIGHTS" FILES WITH SIRIL.
I take astrophotos with Seestar S50 and recently started processing them with Siril 1.4.0 beta 3 version. I noticed that before the staking phase of the lights files (.fit files), Siril always performs a long pre-processing phase in which, for each light frame analyzed, a sentence in blue color says: “The Bayer pattern found in the header (GRGB) is different from the Bayer pattern in the settings (RGGB): I override the settings” (see attached screenshot). Should I correct something or change some settings on Siril or Seestar S50 in order to align the RBGB settings and avoid this long time consuming pre-processing phase? Can anyone give me some information about this? Thanks for your help. Gianpaolo Quatraro