Every store needs a man zone
Had a previously banned user from a discord I moderate join back months later with my wife’s name as their username and a photo of her as the pfp
smoke weed, drink, jerk off, and play vrchat!
Alternatively spend New Year’s Eve with friends in vrchat, drinking beer from your fridge, and having your bed only 20 feet away in the next room
So technically 32 Cygni is just the bright star in the pic, and the rest of it is just hydrogen gas floating around in space. The constellation Cygnus has a ton of this hydrogen-alpha gas floating around, and I kinda just pointed at a semi-random spot in the constellation to get a pic. Although this was taken with an Ha filter, the stars are true color RGB, and I mapped the Ha channel to red so it closely resembles the actual color of hydrogen-alpha. Also for those curious here is a starless version that better shows the faint nebulosity/structures. Also pls ignore the crunchiness around 32 Cyg itself, it’s an artifact of my camera’s microlensing + the star removal program I use. Captured over like a dozen nights in December 2024 from a bortle 9 zone.
Places where I host my other images:
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: 29 hours 18 minutes (Camera at -15°C), unity gain
Ha - 161x600"
R - 51x60"
G - 59x60"
B - 48x60"
Darks- 30
Flats- 30 per filter
Capture Software:
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
Narrowband Linear:
Blur and NoiseXTerminator
StarXterminator to completely remove stars from each the image
HistogramTransformation to stretch nonlinear (calling this the Ha image now)
Broadband/RGB linear:
ChannelCombination to make color image from R G and B stacks
StarX (correct only)
SpectrophotometricColorCalibration
(duplicated image at this point, to be used for stars only processing later)
StarX to completely remove stars (at this point it’s just background, with a little bit of signal in the R channel)
Blended unstretched Ha image into the red (and a little bit of the blue channel) with this pixelmath:
R = $T+B*(Ha- med(Ha))
G = $T
B = $T+B*0.2*(Ha- med(Ha))
honestly can’t remember what I used for the B constant, but the default is 2 in my pixelmath ¯\_(ツ)_/¯
HistogramTransformation to stretch nonlinear (calling this the Starless image now)
Stars only processing:
HSV repair to fix blown out star cores
StarXterminator to generate an image containing only the stars (without any background)
ArcsinhStretch + Histogramtransformation to stretch nonlinear (Calling this the Stars image now)
Nonlinear:
LRGBCombination to add the stretched Ha image to the stretched Starless image as a luminance layer
NoiseXterminator
Background neutralization
Several curve transformations to adjust lightness, contrast, saturation, color balance, etc
LocalHistogramEqualization
Another round of noiseX
Pixelmath to add in the stretched RGB Stars 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))
few more curve adjustments
FastRotation 180 degrees (pic was originally upside down)
DynamicCrop again (just a little bit)
Resample to 60%
Annotation
PSVR 2 headset has a haptic thing in the forehead
One I used to run, /r/astrophotogramemes, is still private. Had about 1k subs before the protests. On /r/astrophotography we basically left it unmoderated for almost a year before new mods came in
I decided to do a deep dive into just the core of the Heart Nebula itself. Mellotte 15 is the name for the bright structure in the image, but the rest of the nebula itself is pretty extensive, and features the nearby soul nebula. IMO the uncropped heart nebula looks more like a chode with huge balls, but I can kinda see where it got it’s heart name… Captured over 8 nights in November 2024 from a bortle 9 zone.
Places where I host my other images:
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: 29 hours 50 minutes (Camera at -15°C), unity gain
Ha - 58x600"
Oiii - 62x600"
Sii - 59x600"
Darks- 30
Flats- 30 per filter
Capture Software:
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
Narrowband Linear:
Blur and NoiseXTerminator
made SHO image and extracted stars to be processed separately
StarXterminator to completely remove stars from each Ha, Oiii, and Sii image
HistogramTransformation to stretch nonlinear
Stars only image:
SpectrophotometricColorCalibration (narrowband working mode)
HSV repair
arcsinhstretch
scnr > invert > scnr > invert to remove greens and magentas
HistogramTransformation
(combined with starless pic later on)
Nonlinear:
PixelMath to combine monochrome Ha Oiii and Sii images into a color image with SHO --> RGB, respectively
HistogramTransformation to adjust red green and blue color channels separately (basically stretched R and B, and toned the G down some)
LRGBCombination using stretched Ha as luminance
DeepSNR
Shitloads of Curve Transformations to adjust lightness, hues, contrast, saturation, etc
Clone stamp to remove one weird small blue speck near the core of the nebula (might’ve just clipped the colors a little too much in the histogram adjustments above^)
LocalHistogramEqualization (two rounds of this. one at kernel radius 16 for small scale detail, and one at 500 for large structures)
More curves
DarkStructureEnhance script (0.15 amount)
Pixelmath to add in the stretched RGB 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))
some more curves
One more round of noiseX for small scale noise reduction
DynamicCrop in on just the core region
Resample to 80%
Annotation
Yea I fuck**g hate it
Still shooting in Cygnus…
Though I think IC1318/γ Cyg can be used to describe most of the nebulosity around the star Sadr, stellarium has it directly over the bright nebula in this image. Overall I’d consider it an improvement over my last go at it back in 2020. Captured over 12 nights from Oct-Nov 2024 from a bortle 9 zone.
Places where I host my other images:
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: 25 hours 40 minutes (Camera at -15°C), unity gain
Ha - 50x600"
Oiii - 57x600"
Sii - 47x600"
Darks- 30
Flats- 30 per filter
Capture Software:
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
Narrowband Linear:
Blur and NoiseXTerminator
made SHO image and extracted stars to be processed separately
StarXterminator to completely remove stars from each Ha, Oiii, and Sii image
HistogramTransformation to stretch nonlinear
Stars only image:
SpectrophotometricColorCalibration (narrowband working mode)
HSV repair
arcsinhstretch
scnr > invert > scnr > invert to remove greens and magentas
HistogramTransformation
(combined with starless pic later on)
Nonlinear:
PixelMath to combine monochrome Ha Oiii and Sii images into a color image with SHO --> RGB, respectively
slight SCNR (bright areas protected with Ha mask)
Some curves to adjust colors
LRGBCombination using stretched Ha as luminance (accidentally left that Ha mask on from earlier so it applied more to the bright parts, and honestly turned out nicer than applying the Ha luminance to the entire image)
Shitloads of Curve Transformations to adjust lightness, hues, contrast, saturation, etc
DeepSNR
MLT for small scale chrominance noise reduction
DarkStructureEnhance script
LocalHistogramEqualization
more curves
invert > slight scnr (masked) > invert to remove some background magentas
even more curves
Pixelmath to add in the stretched RGB 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 65%
Annotation
Decided to just shoot a semi-random part of Cygnus. The large extended Ha region in Cygnus is unofficially called Smaug, and this is a photo specifically of the area around LBN 325/326. The nebulosity in this pic is false color, but the stars are true color RGB. I really love how this turned out with the narrowband palette, especially with the Oiii region on the right side looking almost like a true color Ha region. Captured over a shitload of nights from Aug-Oct 2024 from a bortle 9 zone.
Places where I host my other images:
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: 57 hours 40 minutes (Camera at -15°C), NB exposures at unity gain and BB at half unity
Ha - 111x600"
Oiii - 127x600"
Sii - 94x600"
R - 48x60"
G - 48x60"
B - 44x60"
Darks- 30
Flats- 30 per filter
Capture Software:
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
Narrowband Linear:
Blur and NoiseXTerminator
StarXterminator to completely remove stars (to be later replaced by the RGB ones)
HistogramTransformation to stretch nonlinear
RGB Linear:
ChannelCombination to combine monochrome R G and B frame into color image
SpectroPhotometricColorCalibration
BlurXTerminator for star sharpening (correct only)
HSV Repair
StarXterminator to generate a stars-only image
ArcsinhStretch + HT to stretch nonlinear (to be combined with starless narrowband image later)
Invert > SCNR > invert to remove magentas
Curves to saturate the stars a bit more
Nonlinear:
R = 0.3*Oiii+0.7*(Oiii^~(0.7*Ha+0.3*Sii))^1.2
G = ((Oiii*Ha)^~(Oiii*Ha))*Ha + ((Oiii*Ha)^(Oiii*Ha))*Sii
B = 0.9*Sii+Ha-Oii
NoiseX again
Shitloads of Curve Transformations to adjust lightness, hues, contrast, saturation, etc
more curves
Extract L --> LRGBCombination for chrominance noise reduction
even more curves
Pixelmath to add in the stretched RGB 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))
Couple final curves
Resample to 60%
Annotation
0, I’m just raw dogging /all (minus whomever .world is defederated from)
Med student here. I probably would’ve failed a lot of in house exams/step 1 if I didn’t use anki. IMO it’s best for solidifying knowledge and quick recall of facts, but doing a shitload of practice questions is the best way to apply what you’ve memorized through anki (this last bit is most applicable to med school/mcat prep).
Really the main cost with it is your time. If you miss a day or two it can be daunting to get back in the groove and work on your review backlog. I usually have enough downtime during the day and time on the shitter to get through my reviews + whatever new cards I add. Anki itself is free but they do have a paid iOS app that I got just to use whenever I had a few mins of spare time.
As for the learning curve, this will vary if you’re making your own cards vs using a premade deck for a large standardized exam. Once you know the formatting it isn’t that difficult to make cloze cards for what you’re trying to learn.
The starliner astronauts are still up there (and will be until they return on the crew 9 capsule in February). This is the crew that went up before them returning to earth
Holy fuck they did it
Mildew is ‘eepin
Might be some bug in automation?
https://old.reddit.com/r/ModSupport/comments/1ii67mt/_/mb3fewv