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:

Flickr | Instagram

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: 25 hours 40 minutes (Camera at -15°C), unity gain

• Ha - 50x600"

• Oiii - 57x600"

• Sii - 47x600"

• 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

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

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:

Flickr | Instagram

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: 25 hours 40 minutes (Camera at -15°C), unity gain

• Ha - 50x600"

• Oiii - 57x600"

• Sii - 47x600"

• 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

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

Not to self promote my own community too much, but !astrophotography@lemmy.world if you wanna see amateur photos of space

I made this comparison a while ago, and figured I'd share it since I've seen some headlines going around the last couple days...

The Moon's orbit isn't a perfect circle, and at times is a little closer and a little farther away from Earth. It's called a supermoon when the moon is full and at its closest point, and a micromoon when its full and at its furthest point

I wanted to make this comparison to highlight that the supermoon isn't really that much larger than normal. Personally I think the supermoon is overhyped for what it is, and that it's hard to tell visually that the moon is larger or smaller, unless you do a direct comparison like this. The moon can appear larger than normal when its close to the horizon, but the actual size of it is no different than if it was straight overhead: https://en.wikipedia.org/wiki/Moon_illusion

The angular diameters and distances were taken from a planetarium program called Stellarium. I compared the pixel measurements of my photos to the values calculated by Stellarium, and the discrepancy was only 0.22%.

Equipment:

• TPO 6" F/4 Imaging Newtonian

• ZWO ASI1600MM-Pro

• Skywatcher Quattro Coma Corrector

• ZWO EFW 8x1.25"/31mm

• Astronomik LRGB+CLS Filters- 31mm

• Moonlite Autofocuser

Acquisition: (Camera at Unity Gain, -20°C for supermoon, -10°C for micromoon)

• Astronomik Red filter used to combat atmospheric seeing

• Exposure- 0.213ms for supermoon, 1.115ms for micromoon

• 1000 frame capture for supermoon

• 2000 frame capture for micromoon

Capture Software:

• Captured using Sharpcap and N.I.N.A. for filterwheel and focuser control

Processing:

• Supermoon: Best 10% of frames stacked in Autostakkert!3

• Micromoon: Best 25% of frames stacked

• Registax Wavelets for sharpening on both images

• Level and curve adjustments in Photoshop

• Images combined and annotated in Photoshop

Bye, Bob :-(

Finally done with classes and I got some time to at least star processing my pics. Gonna be a while before I figure out all the HDR stuff, so here's a pic of the prominences about 10 seconds before C3. It was absolutely nutty seeing them naked eye during the eclipse, and visually through my other telescope. Captured on April 8th, 2024 from Sikeston, MO.

Places where I host my other images:

Flickr | Instagram

Equipment:

• TPO 6" F/4 Imaging Newtonian

• Orion Sirius EQ-G

• Canon T3i (Ha modded)

• Skywatcher Quattro Coma Corrector

• Moonlite Autofocuser

Acquisition:

• Single 1/4000" exposure at ISO 100

Capture Software:

• Eclipse Orchestrator Free for automating the capture sequence

• NINA for controlling the mount and autofocuser

Photoshop processing:

• Crop, and some minor adjustments to exposure, contrast, shadows, whites, and blacks, and slight S curve

JWST primarily looks at very large objects that are far away. Titan (and really everything in the solar system) is relatively close to us, but are tiny in comparison to galaxies/nebulae, so their actual size as they appear in the sky is a lot smaller.

Holy shit this was the most awesome thing I've ever experienced. I've been prepping for this eclipse ever since I got clouded out at the last minute for the 2017 eclipse, and almost everything went perfectly! (I didn't even hit eclipse traffic on the way home!) With the camera automated I got 163 HDR pics during totality, plus more from the partial phases, so expect to see some more pics in the coming weeks!

I really like how the diffraction spikes turned out from the Bailey's Beads, and how the blue turned out in my totality pics. I tried to keep the editing minimal on this, and just did some minor contrast and saturation adjustments (see below for more details). The corona in the image is definitely bluer than how it looked irl (which was mostly just white), but the prominence color is pretty close to what I saw through my other scope. I suspect it's because of the custom white balance I've had to use for my astro modded cam. For those curious here are my other C2 pics, unedited other than cropping

Captured on April 8th, 2024 from Sikeston, MO.

Places where I host my other images:

Flickr | Instagram

Equipment:

• TPO 6" F/4 Imaging Newtonian

• Orion Sirius EQ-G

• Canon T3i (Ha modded)

• Skywatcher Quattro Coma Corrector

• Moonlite Autofocuser

Acquisition:

• Single 1/4000" exposure at ISO 100

Capture Software:

• Eclipse Orchestrator Free for automating the capture sequence

• NINA for controlling the mount and autofocuser

Photoshop processing:

• Just a crop, and some minor adjustments to exposure, contrast, shadows, whites, and blacks

Well I guess that’s one way to be a smart-ass

This is a photo from a lunar transit of the space station a few years ago. I had another telescope setup to take a video of the pass, and here's a composite of the frames it took (the whole thing lasted less than a second).

I really enjoy the scale of this image, with the ISS being 540km away, and the moon some 380,000km in the background. more detailed info on the ISS Transit ISS transit can be found here courtesy of transit-finder. Captured on the morning of June 24, 2019 about 30 minutes after sunrise.

Equipment:

• Meade ETX125-EC

• AW 71" Camera Tripod

• Canon Rebel T3i (astro-modified)

• Meade #64 adapter

Acquisition:

• 1/800" at ISO 800 single exposure

Capture:

• I just held down the shutter button a second before the ISS pass occurred, and got 3 frames containing the ISS

Processing:

• AutoColor and Levels adjustments in Photoshop

• MLT noise reduction and annotation in PixInsight

They actually just got rid of the stars, now you just tip people

https://old.reddit.com/r/reddit/comments/16ryhv9/celebrating_great_content_is_as_good_as_gold/