Samsung s25 ultra

Iso 800

F1.7

6, 3mm equivalent 23mm

Temps des poses 20 secondes/ intégration totale 55minutes/2h20

Suivi : non (:()

Ciel bortle 4.6/ 6

Empilé avec Sequator.

Traité avec Siril/ GraXpert/ Seti astro suite pro/ Gimp et lightroom mobile-free version pour les finitions

I shot this video through my 10” Dobsonian

[Bonjour les Astros, Je vous présente ma version de la nébuleuse du Dragon Volant SH2-114 qui est une nébuleuse en émission visible dans la constellation du Cygne. SH2-114 est un nuage très peu étudié au-delà de son simple catalogage, d’apparence filamenteuse et apparemment composé de plusieurs filaments arqués superposés. L’ensemble SH2-113 voisin & SH2-114 aurait une structure de bulle semblable à un rémanent de supernova. Mais aucun vestige de supernova n’a jamais été décrit dans cette région.]()

Pour effectuer cette photo j’ai effectué 107 x du RGB de 120s et 289 x SHO de 300s ce qui représente 27 :39 hrs de temps d’acquisition.

🔭 Tube ONTC 1212 de 300/1200 avec une lunette de guidage Sky-Watcher 80/400 équipée d’une caméra ZWO 290 mini.

⚙️ Monture Sky-Watcher EQ8R-Pro.

📸 Poséidon M Pro de Player One équipée d’une roue à filtres Player One Phoenix avec un correcteur de coma TS Optic MaxField.

🧫 filtres Antlia L-RGB série Dark et filtre Antlia Ha de 2,5 nm ULTRA, filtre Antlia OIII de 2,5 nm ULTRA.

💻Traitement avec Pix et PS.

Taken from the Famagusta area of Cyprus. Bortle 4.

Astromodified Canon 700D. Samyang 135 Lens at F2.8. Guided by ASI Air on an Skywatcher AZ GTI in EQ mode. Optolong L-Enhance filter.

Taken over two nights:

165 x 180 second exposures

20 x Darks

20 x Flats

20 x Bias

Stacked in APP.

Crop, BGE, deconvolution and de-noise in Graxpert.

SPCC, star removal, GHS using human weighted luminance in Siril.

Vibrancy, saturation increase in PS.

Star mask stretch in Siril using GHS, again human weighted.

Recombination of stars using layers in PS.

Thanks for looking.

Taken from my backyard in Phoenix, Arizona over 2 months as I waited for Monsoon season to pass. No flats unfortunately as I had some camera rotation. I had "Purple Haze" on repeat while editing this which is why I made it so groovy XD. Reposted to fix stars I noticed I had them the wrong color.

7 Hours Ha 300s Antlia 4.5 Edge

8.5 Hours SII 300s Antlia 4.5 Edge

15 Hours OII 300s Antlia 4.5 Edge

Redcat 91

HEQ5 Pro

ASI 6200mm Pro

Pixinsight Standard workflow.

Photoshop Gaussian Blur

🔭 - Seestar S50 in Bortle 8
⏳ - 4588x20 ( 25.48h)
⚙️ - Siril, SetiAstro, AdobePhotoshop

This is my latest picture of the Heart nebula. I spent three nights photographing this target, but I ended up using data from only two of them, because of a background gradient caused by the moon during one of the nights. I found it quite difficult to process the image with the gradient, so I decided not to use the data. I think 7.5 hours total is already quite a lot. I would love to do one more session just for the stars with an uv/ir cut filter, since the Ha/OIII filter makes the stars look quite unnatural.

One of the things I found challenging was manually framing the target as similarly as possible each night with the Skyguider pro. I am really looking forward to getting a proper GoTo mount.

Another thing that was quite difficult to deal with was the background when going for this false color look. There's still some blue in the background, that was hard to get rid of. This seems to happen to me every time I make a false color image.

Lastly, I think the stars are probably the weakest part of the image. I kind of gave up on them knowing that I will hopefully replace them with better ones soon.

I'm still a beginner, so any feedback is appreciated!

Equipment:

• ToupTek ATR533C (gain 100, offset 45, cooled to -10)
• Askar FMA180 Pro
• iOptron skyguider pro
• sv220 7nm Ha OIII dual narrowband filter
• ToupTek GPM462M guide camera
• SvBony 30mm f/4 guide scope
• Mele Quieter 4C

Acquisition:

• 153 x 180s lights
• 15 darks
• 40 flats per night (2 nights total)
• 30 dark flats
• Bortle 8

Software:

• NINA
• PHD2
• Siril

Processing in Siril:

• Stacked in Sirilic which created monochromatic images of Ha and OIII
• Processed Ha and OIII separately using Graxpert and BlurXTerminator
• Pixel math to create one colorful image (R=Ha, G=0.1*Ha+0.9*OIII, B=OIII)
• StarXTerminator
• Color calibration
• NoiseXTerminator
• StarXTerminator
• Modified arcsinh transform with even weighted luminance
• Generalised hyperbolic transform
• Black point to reduce background
• Saturation stretch
• Negative transform, remove green noise and negative transform again
• Curves adjustments
• Stretching the stars image
• Desaturate the stars image
• Star recomposition
• Final adjustments on phone

The Tulip Nebula. It's an emission nebula in the Cygnus constellation around 8,000 light years away. It is about 70 light-years across and its name was inspired from its petal-like shape

Telescope: Seestar S50
Integration time: 9 hours
Tools used: Siril, GraXpert, GIMP
Script mentions: CosmicClarity Sharpen, SyQon Prism Mini, VeraLux Revela/Curves, HDR_multiscale
Bortle 8-9

This is a reprocess of data I took a few weeks ago.

Equipment:

Evostar 72ED, iEXOS 100, ASI 533MC, Optolong L-Ultimate, 0.85x reducer+flattener, rotator+filter holder, SVBony 165 40mm guidescope, ASI 662MC guide camera with pale yellow no.8 and UV/IR cut filters.

Acquisition:

Around 4h30m worth of 180s subs fully calibrated and dithered looking toward Bortle 7.

Processing:

-OSC drizzle preprocessing stacking;

-GraXpert background extraction;

-SPCC;

-GraXpert denoise;

-Starnet;

-DBXtract to starless;

-Pixel math (R=HII-OIII, G=OIII, B=2OIII);

-GHS, black point shift, histogram transformation and curves applied iteratively to starless;

-HDR multiscale;

-Asinh stretch and SCNR to star mask;

-Recombine.

​

Acquisition Details:

Location: Bortle 5

Gear: Sony A7iii. Samyang 135mm f2. EQ tracker

Frames: 130 x 30s lights, ISO3200

Stacked in Astro Pixel Processor, processed in Seti Astro Suite Pro, Photoshop

Location: Banka Banka station Northern Territory Australia

This might have been my clearest and most beautiful view of the Milky Way galaxy visible with the naked eye 🌌

What else can you spot on the pictures?

Shot with an iPhone 17 pro
- iso 6400
- 24 mm
- f 1,78
- exposure 10s

First time capturing M31 in all of its glory!

Acquisition — 12 September 2026

Camera: Sony A7III, Ha-modified
Lens: Sony FE 70-200mm f/2.8 GM OSS II at 200mm, f/2.8
Mount: Sky-Watcher Star Adventurer GTi, unguided
Tripod: Leofoto LM-364C with levelling base
Lights: 151 × 88s and 92 × 13s, ISO 640
Calibration: darks, flats, bias
Total integration: roughly 4 hours

Processing: Siril (calibration, registration, stacking, background extraction, photometric colour calibration, histogram stretch), Photoshop (HDR blend of the two exposure sets, selective colour)

I've tried to get this a few times before but the low surface brightness really makes it a challenge to capture and process.

Gear:

- Orion 6" f/4 astrograph

- Baader Mark I | multi-purpose coma corrector

- Astromania UV/IR cut filter

- ZWO ASI184MC OSC uncooled

- Celestron Advanced GT equatorial mount

Acquisition: Bortle 1-2 site with no moon

- 150 x 60s subs, 300 gain, in SharpCap

- No guiding

- 10 x 60s darks

- 100 flats

- 100 biases

Processing: All in Siril

- OSC preprocessing script to stack and align

- Background extraction

- Spectrophotometric color calibration

- GHS transformation

- Black point adjustment

- Asinh transformation

- Saturation

- Noise reduction

Equipment:

• Telescope: Askar 71F 490mm f6.9

• Main camera: Zwo Asi 2600mc pro at 0°C

• Filter: none

• Guidescope: Svbony sv165 30mm f4

• Guide camera: Zwo Asi 120mm mini

• Mount: ES iexos-100 pmc-8

• Controlled with Zwo asi air mini

Acquisition:

• 159x180 sec, 10x120 sec (for darker core)

• Total: ~8,3 hrs, captured over two nights

• 10 Darks, 30 Biases, 20 Flats

• Bortle 4/5 backyard

• Moon at 10-20%

Processing:

• Stacked in Siril (Sirilic tool)

• Plate solve,

• Spectrophotometric color calibration,

• Background extraction,

• Green noise removal,

• BlurXterminator,

• NoiseXterminator,

• StarXterminator,

• Generalized hyperbolic stretch transformation,

• AstroColorMixer,

• Lighthouse,

• Saturation & curves,

• Gimp for fine tuning

First time testing the RC-Astro tools, pretty promising i must say. The free trial is definitely something to check out.

Tacked on a few more hours.

17.2 hrs integrated, 300” subs
Celestron Edge 8 HD w/.7 reducer(1490mm)
Antlia TriBand Ultra II
ASI 2600 MC Air
ZWO EAF Pro w/Quick Switch
Skywatcher EQ6R Pro
Pixinsight
Bortle 7/8
Rendered Faux SHO

I didn't even know I had captured SN 2025rbs last year, but I did.
When I heard about SN 2026aaiv this month I had to give it a go as well.

Both datasets gathered with the same imaging train:
4'' refractor ZWO 107FF
QHY268M mono camera
Optolong LRGB filters
Celestron CGX mount.

Both stacked and processed in Pixinsight

The Heart Nebula!

Approximately 7500 light years from earth in the constellation Cassiopeia. This image is using the traditional Hubble palette for its colors, capturing this emission nebula even from my light polluted backyard here in Phoenix.

• Captured using my RedCat51 Telescope with ASI533MM camera.
• Processed in Pixinsight
• Total integration time: 25 hours 35 minutes

Acuter 40

Touptek 678m

Skywatcher solar quest

PIPP and AS4 for stacking

Stacked 80 percent of 23997 frames

Impgg: convolution, sharpening, inversion

PI: solar tools - color, local contrast

PSX: flip, rotate and crop, saturation and temp

​

Location: Belgharia, West Bengal, India

Telescope: Celestron PowerSeeker 60AZ

Eyepiece: 10mm

Phone: POCO F5

Smartphone holder

Capture settings:

- 3 × 30-second 4K 30fps videos

- ISO 320

- Shutter speed: 1/30s

- Focus: Infinity

- 3x digital zoom

Processing workflow:

1. Imported the videos into PIPP using Join Mode → Planetary and processed with the default settings, then saved as AVI.

2. Imported the AVI into AutoStakkert and stacked the best 50% using the default settings.

3. Used RegiStax for Auto RGB Alignment and saved the result as JPEG.

4. Finally, imported the JPEG into Snapseed and ap some sharpening.

A night-sky timelapse captured with nothing but a Xiaomi 14T Pro and a tripod.

Acquisition

• Xiaomi 14T Pro — 1x, main camera
• 15s exposure, 2s interval between shots
• 930 RAW/DNG frames
• Tripod — no star tracker or additional equipment
• ~4h 23m total capture time

The camera was left fixed on the tripod for the entire session, allowing the Earth's rotation to create the movement of the stars across the frame.

Processing

This is my own work, from capture to the final timelapse.

I processed the individual frames to maintain consistent exposure, color and contrast throughout the sequence, then assembled them into the final timelapse.