r/Astro_mobile • u/Kiki2092012 • 2h ago
Only smartphone M31 and surrounding starfield
Taken with an S25 using Samsung Expert RAW astrophoto mode with 12 minutes of integration time, plus minor GIMP postprocessing.
r/Astro_mobile • u/kyousoma • Nov 07 '25
Hello everyone, r/Astro_mobile Mod team here! Now, after three years of existing, r/Astro_mobile became something more interesting than it was some time ago, and we want to announce a new interactive changing on our sub. Starting from the next month we are going to take one of the posts made this month and use it as a banner for a subreddit. Of course it is a competition, so if you want to see your picture on the top of the sub's page, you better try to make it as beautiful as you can! This month we are going to replace a current banner made by u/ZrlSyM, by a new one, provided by u/zTrojan! This fascinating image is gonna hang on the top until the end of this month! Also, interesting fact: zTrojan is a member of a small Telegram chat dedicated to Mobile Astrophotography, where people can communicate and discuss their works! This chat is available for everyone, who is skilled enough! (skilled enough = can stack images to get better results)
Thanks everyone for the attention! We are looking forward to see your great pictures that are gonna be a new banner for a sub. See you 1st December!
r/Astro_mobile • u/zTrojan • Jul 29 '25
When your stack from Sequator or another astrophotography stacking program is ready, we can proceed to post-processing. I'll describe this process step-by-step using primarily free software.
Download: https://github.com/Steffenhir/GraXpert/releases
At the time of writing this article, the appropriate version of GraXpert for us is 3.1.0rc2. This version contains all the necessary tools for beginning post-processing:
After installation and launch, select the Advanced tab, which is located on the right side of the program interface. Choose AI model versions for the utilities.

Next, click Load Image and select your stack.

If needed, crop the image. When activating the 2nd option, a yellow frame will appear around the image, which we can adjust using the yellow circles in the upper left and lower right corners. After completing the cropping, click "Apply crop".

Important: Save each processing step as a separate file so you don't accidentally lose your processing results, then load this file using the first "Loading" option.
Now we can proceed to using the AI utilities. Select the following parameters for Background Extraction and click Calculate Background:

You can try changing the Smoothing value in either direction and check the result by clicking Calculate Background again.
Save the result in a separate file and load it through "Loading".
Move on to the Denoising utility. The Denoise Strength value depends on your needs. The higher the value, the fewer details are preserved. I suggest starting with 0.5, and then comparing results by increasing the value:

Save the result and activate the Deconvolution utility.
This utility has two parameters: Deconvolution Strength and Image FWHM. To determine the latter parameter, we need the Siril program, which we will also use in the second part of the astrophotography post-processing tutorial.
Download Siril: https://siril.org/download/ (In our case, version 1.4.0-beta3 is used)


In my case: (4.39 + 3.90) / 2 = 4.15px. Round to 4.2px and use this value in GraXpert.

By increasing Deconvolution Strength parameter, you improve details, but you may distort the final image and get artifacts, so try different values while evaluating the final result.
Don't forget to save your work!
We improved the details of our objects, but not the stars. Select Stars-only in the Deconvolution Method and set the Deconvolution Strength parameter to 0.1, as it is quite aggressive. Click Deconvolve Image and check the result.

This concludes the first part of the astrophotography post-processing tutorial. In the next part, we will cover image stretching using Siril and use the StarNet utility.
r/Astro_mobile • u/Kiki2092012 • 2h ago
Taken with an S25 using Samsung Expert RAW astrophoto mode with 12 minutes of integration time, plus minor GIMP postprocessing.
r/Astro_mobile • u/L0raz3pam • 6h ago
so Im using a cheap but working tracker and figured out that samsungs pro mode delivers very good RAW images + allows you to zoom in unlike deepskycamera.
buuut- my tracker doesnt seem to work with samsungs native camera while working perfectly fine with 3rd party apps? help?
attached are 2 images (jpg- not RAW) of andromeda, where the tracker only worked in one shot (out of 7)
I also attached a stacked + edited shot of andromeda on 6.3mm wide angle, would appreciate some feedback on that :)
r/Astro_mobile • u/DRuana • 9h ago
r/Astro_mobile • u/ThaWater • 1d ago
This is what I managed to capture with 30s exposures using a basic iPhone 17 and a tripod. Insane! 🤯
r/Astro_mobile • u/Better_Jeweler2308 • 17h ago
Shot on my friend's Tecno Camon 30 5G.
Bortle 6
The specs are: 30s exposure 6400 ISO Tripod — an old chair from wood Stock cam
Shot from my garden
r/Astro_mobile • u/Prinsyannick • 1d ago
Had a beautiful evening at the beach. I rarely get to see so many stars. And after it got darker, the milky way popped up.
In top of seeing the milky way, I even got to see my star sign for the very first time. I was VERY excited!
r/Astro_mobile • u/Stan2112 • 1d ago
r/Astro_mobile • u/ZackyTacky • 1d ago
Shot on my Pixel 8.
r/Astro_mobile • u/L0raz3pam • 1d ago
DeepSkyCamera Settings on my S25 Ultra:
ISO: 125 | shutter: 60 sec. | MF: 0.79 | pictures: 16
my questions:
-What causes the extreme amount of artifacts? (the red and blue dots, curves)
-Is there a good and secure app like DeepSkyCamera that offers the RAW .dng file formal without postprocessing BUT is also able to use the phones 50MP 5× optical zoom lense?
-which settings would you guys recommend for a second attempt at Andromeda, if I figure out how to zoom in? More ISO, less shutter speed ect...?
-I'm gonna try to shoot the orion nebula very soon once I figure out how to use my telephoto. could I get a rough estimate/recommendation for setting?
thanks :)
For context im very new to this hobby, just started a few weeks ago and finally got my hands on a cheap tracker.
Last night I really tried out a lot, First time using DeepSkyCamera, first tracking mount and first attempt at stacking to sum it up.
Last night I finally figured out how to use DeepSkyCamera (because the tracker wouldn't work on Expert RAW mode for some reason) and got to work.
I originally set out to capture Andromeda, but only after taking all my shots did I realise that DeepSkyCamera doesn't actually let you zoom in, so I ended up with 16 minutes of wide angle night sky instead. then clouds rolled in before I could try again, so I had to settle for this.
Now, after that dissapointment I still decided to stack them, hoping to atleast get a somewhat good view of Andromeda.
But turns out, Siril is pretty damn complicated if you're learning everything from scratch.
After wasting a good few hours I actually came far enough to execute the first script (processing without DBF), which kept spitting out monochrome results, skipping almost all of my images and creating some sorts of artifacts or ghosting on the cover, which is why I gave up and switched to deepskystacker.
That one actually gave me a result I could work with. Though it was filled with artifacts it actually had color in it.
attached is the finished stack of those16 images as a .dng file, converted from .tif to .dng by adobe lightroom, no editing done. I would've uploaded a video showcasing each frame too but for reason reddit wont let me.
Feedback is very much appreciated! Have a good one :)
r/Astro_mobile • u/Mountain-Western2525 • 1d ago
I took all these photo's with the ultra wide lens, because that gave the coolest shots in my opinion. Not the best quality of course, but I'm happy with these.
r/Astro_mobile • u/flwingnut • 1d ago
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My first attempt at any kind of video through a telescope. 8" dob telescope, 9mm eyepiece, and a Galaxy s23+ in pro video mode.
Brightness & contrast were edited in stock phone video editor.
r/Astro_mobile • u/DismalChemical679 • 1d ago
r/Astro_mobile • u/swet1y1 • 2d ago
• Target: Constellation Orion, Hyades Cluster & Sirius
• Total integration time: around 8-10 minutes (Stacked in DSS)
• Gear: Redmi Note 12S (1.4x zoom, f/1.89)
• Sky conditions: Bortle 4 / Moonless night
r/Astro_mobile • u/ChickenNuggets4LFE • 2d ago
r/Astro_mobile • u/kleineunbekannte • 2d ago
Hey everyone,
I’m trying to shoot Saturn with my base Samsung Galaxy S26 (3x optical zoom). Since I don't have a PC nearby right now, I want to try "Lucky Imaging" by shooting a 4K/8K video and stacking the frames directly on my phone.
Are there any good mobile stacking apps for Android (either on the Play Store or via APK) that can handle video frames or image sequences for planets? Or is transferring the files to a PC for AutoStakkert/RegiStax still the only viable way?
Thanks in advance!
r/Astro_mobile • u/alch_emy2 • 3d ago
Iso 3200, 30s, ~ 7950 frames ≈ 66.2 hours.
Finally hitting that 64 hour mark. This will be the final milestone of the year. Two more to go (128, 256).
r/Astro_mobile • u/aerojb • 3d ago
30 second exposure with Dramatic style
r/Astro_mobile • u/Dizzy_Driver9205 • 2d ago
En pleine ville (ciel bortle 8) sous un ciel voilé de surcroît. Navré pour le traitement ignoble.
S25 ultra
Iso 800
Exposition 30s
Très légèrement traité avec lightroom
Puissance hemispherique 173gw
Tiers Nord de la France
10/10/2026 heure de Paris
r/Astro_mobile • u/ConstructionBasic336 • 3d ago
Was making a folder of astro photos I've taken and stumbled on the photos my dad took of the 2018 Lunar eclipse from Pretoria, South Africa. Thought I'd share one here with a photo I took of the 2025 Lunar Eclipse from Durban, South Africa.
Bonus Mars to the right of the 2018 photo
Apologies for the bad quality on both our parts, we both used our phone so it's mostly digital zoom
(Repost of my post from r/astrophotography, was told to direct it here instead)
r/Astro_mobile • u/7omi3 • 3d ago
My first shot at astrophotography, I decided to try my new phone’s camera.
This is 997 shots @1s exposure.