Image Processing Techniqueshubble-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.
Image Processing Techniques该怎么叠加才可以让彗星不脱线？
S50拍彗星时间长了彗星就会脱线。把单桢导入Siril中进行叠加，就会因为保存的单桢没有拍摄时间和日期而无法对齐。该怎么叠加才可以让彗星不脱线？
Image Processing TechniquesDark 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
Image Processing TechniquesAny 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
Image Processing TechniquesManaging 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
Image Processing TechniquesWhy 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
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1望远镜的目镜选择？
2如何在城市里（六级区）出摊打野拍深空？而且新购入的设备总价不超过一万？
3Pixinsight - is it worth it ? How is the learning curve ?
4Sun Guardian Badge - best tips?
5Help with the Moon Phase Tracker?
6What are y’all’s favorite deep sky objects?
7Sirius Warrior - new badge / new questions !?
8Who’s going to AstroCon2025 at Bryce Canyon?
Thought List
1Lego made solar finder
2关于超级蓝月亮，全面的问题解答(Super Blue Moons: Your Questions Answered)
3Sirius Warrior Acquisition Group (SWAG)
4关于月食的一切，类型、图像以及发生的频率。
5Comparison of S30 v S50 Rosette Nebula
6Nice garbage container always polar aligned containers on wheels Pull and close up.
7What is your motivation to do astrophotography?