lefty7283

It should work, NASA is working on it. https://www.nasa.gov/directorates/somd/space-communications-navigation-program/nasa-successfully-acquires-gps-signals-on-moon/

Yep! Saturn, Mars, and Mercury, respectively

Shai Hulud 🙏

update they posted earthrise too

We finished out For All Mankind rewatch just in time for the new episode to come out!

For bad movie night last night we did Cats and Dogs (2001). Imo more it’s more silly than bad, but still about pets being secret spies at war with each other.

Kinda vibes at this point, but on my broadband images I'll loop through something like LLLLRRGGBB in my sequence. main thing is making sure there's good enough signal in the final luminance image. Seeing the SNR plots while live stacking is also very helpful for knowing when I hit diminishing returns for a particular filter

So I originally shot this back in 2020 from my in-law's house in a Bortle 4 area. Only got a handful of LRGB subs because my guide cam did not wanna talk to my laptop for most of the session back then. Recently I decided to shoot some Ha from my B9 apartment and give it a reprocess in HaLRGB. Overall I'm very pleased with this improvement after 6 years! Captured captured in February 2020 and December 2025 from bortle 4 and 9, respectively.

Places where I host my other images:

Flickr | Pixelfed

Equipment:

• TPO 6" F/4 Imaging Newtonian

• Orion Sirius EQ-G

• ZWO ASI1600MM-Pro

• Skywatcher Quattro Coma Corrector

• ZWO EFW 8x1.25"/31mm

• Astronomik LRGB+CLS Filters- 31mm

• Astrodon 31mm Ha 5nm, Oiii 3nm, Sii 5nm

• Agena 50mm Deluxe Straight-Through Guide Scope

• ZWO ASI-290mc for guiding

• Moonlite Autofocuser

Acquisition: 9 hours 55 minutes (Camera at unity gain, -15°C)

• Ha - 48x600"

• L - 12x300"

• R - 4x300"

• G - 4x300"

• B - 3x300"

• Darks- 30

• Flats- 30 per filter

Capture Software:

• Captured using N.I.N.A. and PHD2 for guiding and dithering.

PixInsight Preprocessing:

• BatchPreProcessing

• StarAlignment

• Blink

• ImageIntegration per channel

• DrizzleIntegration (2x, Var β=1.5)

• Dynamic Crop

• DynamicBackgroundExtraction

duplicated each image and removed stars via StarXterminator. Ran DBE with a shitload of points to generate background model. model subtracted from original pic using the following PixelMath (math courtesy of /u/jimmythechicken1)

$T * med(model) / model

Luminance linear:

• BlurXterminator

• StarXterminator to completely remove stars (extracted stars processed separately)

• STF applied via HistogramTransformation to stretch nonlinear

Ha Processing:

• StarX to remove stars

• Subtracted red continuum to create a 'clean' Ha image using pixelmath

• Pixelmath to combine the clean Ha image into the RGB image

largely following this advanced narrowband combination guide, also made by jimmy

RGB Linear:

• Channelcombination to make color image from RGB stacks

• SpectrophotometricColorCalibration

• StarX to remove stars (to be used for star addition later)

• PixelMath per the advanced narrowband guide to add Ha into the red and blue channels

• ArcsinhStretch + HistogramTransformation to stretch nonlinear

• Slight curves saturation boost and histogram adjustments

Stars only image:

• BlurXterminator for discortion correction and some mild star reduction

• HSV repair

• ArcsinhStretch + HistogramTransformation to stretch nonlinear (less aggressive stretch)

• Slight curve adjustments

Nonlinear Processing

• LRGBCombination to combine stretched RGB and L images

• DeepSNR Noise reduction

• Shitloads of curve transformations to adjust luminance, contrast, saturation, etc

• More curves

• LocalHistogramTransformation

• Pixelmath to add in the stretched stars only image from earlier

  This basically re-linearizes the two images, adds them together, and then stretches them back to before. More info on it here

  mtf(.005,

  mtf(.995,Stars)+

  mtf(.995,Starless))

• NoiseXTerminator for some small scale chrominance noise reduction

• Resample to 70%

• DynamicCrop in on just the galaxy (not a whole lot going on in the background)

• Annotation

Finally going through my processing backlog! I tried to get some Ha on this from home, but I had too many obstructions to shoot at this declination. Decided to keep this as a wider crop since most the images of this I see are cropped in on just the nebula itself. Captured captured on November 23rd, 2025 from a Bortle 3 zone (deerlick astronomy village).

Places where I host my other images:

Flickr | Pixelfed

Equipment:

• TPO 6" F/4 Imaging Newtonian

• Orion Sirius EQ-G

• ZWO ASI1600MM-Pro

• Skywatcher Quattro Coma Corrector

• ZWO EFW 8x1.25"/31mm

• Astronomik LRGB+CLS Filters- 31mm

• Astrodon 31mm Ha 5nm, Oiii 3nm, Sii 5nm

• Agena 50mm Deluxe Straight-Through Guide Scope

• ZWO ASI-290mc for guiding

• Moonlite Autofocuser

Acquisition: 10 hours 12 minutes (Camera at unity gain, -15°C)

• L - 97x180"

• R - 37x180"

• G - 36x180"

• B - 34x180"

• Darks- 30

• Flats- 30 per filter

Capture Software:

• Captured using N.I.N.A. and PHD2 for guiding and dithering.

PixInsight Preprocessing:

• BatchPreProcessing

• StarAlignment

• Blink

• ImageIntegration per channel

The luminance data was split into 3 stacks and combined to use the single channel DeepSNR method

• DrizzleIntegration (2x, Var β=1.5)

• Dynamic Crop

Luminance linear:

• MultiscaleGradientCorrection using MARS Project data

• BlurXterminator

• StarXterminator to completely remove stars (extracted stars processed separately)

• STF applied via HistogramTransformation to stretch nonlinear

RGB Linear:

• Channelcombination to make color image from RGB stacks

• MultiscaleGradientCorrection

• SpectrophotometricColorCalibration

• BlurX (correct only mode)

• StarX to remove stars (to be used for star addition later)

• StarX to extract a stars only image

• ArcsinhStretch + HistogramTransformation to stretch nonlinear

• Slight curves saturation boost and histogram adjustments

Stars only image:

• HSV repair

• ArcsinhStretch + HistogramTransformation to stretch nonlinear (less aggressive stretch)

• Slight curve adjustments

Nonlinear Processing

• LRGBCombination to combine stretched RGB and L images

• DeepSNR Noise reduction

• Shitloads of curve transformations to adjust luminance, contrast, saturation, etc

• More curves

• NoiseXTerminator for some small scale chrominance noise reduction

• LocalHistogramTransformation

• Even more curves

• ColorSaturation adjustments (get rid of some background greens)

• Pixelmath to add in the stretched stars only image from earlier

  This basically re-linearizes the two images, adds them together, and then stretches them back to before. More info on it here)

  mtf(.005,

  mtf(.995,Stars)+

  mtf(.995,Starless))

• Resample to 60%

• Annotation

Started watching the last season of For All Mankind before season 5 comes out.

Also watched The Last Vampire on Earth for bad movie night last night. It’s best described as “if Tommy Wiseau tried to make Twilight”

What equipment did you use?

Not really an acute thing, but there’s this

https://en.wikipedia.org/wiki/Opioid-induced_hyperalgesia

Expansion ratio with a 30ft nozzle gotta be insane