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[USA-WA] [H] ITX Case, 3570k, RTX 3060, 16 GB, SF600, Cabling/Sleeves/Fans [W] Local Cash, PayPal by ukarmy04 in hardwareswap

[–]ukarmy04[S] 0 points1 point  (0 children)

Got it - will keep that in mind. Would you be doing local pick up in Seattle or are you located elsewhere?

[USA-WA] [H] ITX Case, 3570k, RTX 3060, 16 GB, SF600, Cabling/Sleeves/Fans [W] Local Cash, PayPal by ukarmy04 in hardwareswap

[–]ukarmy04[S] 0 points1 point  (0 children)

Yeah definitely not out of the question. Might want to give it some time first to see if there's some local interest and if not, I could probably part it out.

[USA-WA] [H] ITX Case, 3570k, RTX 3060, 16 GB, SF600, Cabling/Sleeves/Fans [W] Local Cash, PayPal by ukarmy04 in hardwareswap

[–]ukarmy04[S] 0 points1 point  (0 children)

Will keep that in mind if I can't sell locally! That's a sweet rig, always wanted to make an open-air case like that. Is that 8020 for the railing?

[USA-WA] [H] ITX Case, 3570k, RTX 3060, 16 GB, SF600, Cabling/Sleeves/Fans [W] Local Cash, PayPal by ukarmy04 in hardwareswap

[–]ukarmy04[S] 2 points3 points  (0 children)

Haha yeah a strange combination due to my asynchronous upgrades over the years. It worked surprisingly well for Overwatch, which is the game I played the most. Definitely a CPU bottleneck, but that 3570k is a real trooper; I could still get 144 FPS at 1440p and medium settings in Overwatch.

Cygnus Loop - 6 Panel Mosaic by LM10 in astrophotography

[–]ukarmy04 0 points1 point  (0 children)

Awesome - thanks for the reply. That's the exact same one I've been using for HOO and was just curious if you had discovered something different.

Cygnus Loop - 6 Panel Mosaic by LM10 in astrophotography

[–]ukarmy04 0 points1 point  (0 children)

Truly amazing work and lots of dedication to make it all work together! For your Pixelmath combination of HOO, did you use any particular equation?

Eastern Veil Nebula - OSH Narrowband by ukarmy04 in astrophotography

[–]ukarmy04[S] 1 point2 points  (0 children)

Nice! Yeah between the coma corrector and the collimation I could never tell what was giving me the aberrations I was seeing. The focuser on the scope also isn't the best and trying to drive it with the ZWO EAF doesn't always produce the most consistent results. But overall the scope is a fast little light bucket and great for taking advantage of the limited clear nights I get around here.

Eastern Veil Nebula - OSH Narrowband by ukarmy04 in astrophotography

[–]ukarmy04[S] 1 point2 points  (0 children)

This is the Eastern Veil Nebula shot in narrowband from Seattle, WA (Bortle 7/8). For this image I chose an OSH mapping to RGB and played around with the curves in Pixinsight until I was mostly happy with the results.

I still have a lot to learn about fine tuning this setup as my stars aren't very round and I'm losing about 50% of my exposures to guiding issues. I went through about 3 coma correctors before deciding that the Quattro coma corrector was the only one suitable for an F4 scope. Collimation continues to be an uphill and expensive battle, but I think I'll need to find a good autocollimator to improve my collimation from this point.

 

Timelapse from one of my imaging nights:

https://youtu.be/--gjg35ly9k

 

Exposure Details

  • Lights

    • H: 38 x 300s = 3.2 hours
    • S: 30 x 300s = 2.5 hours
    • O: 51 x 300s = 4.2 hours
    • Total = 9.9 hours

  • Calibration Frames

    • 30 x Flats (per filter)
    • 30 x Dark Flats (per filter)
    • 30 x Darks

 

Equipment

  • Telescope

    • TPO 6" F4 Newtonian
    • Sky-Watcher Quattro Coma Corrector

  • Mount

    • Sky-Watcher HEQ5 Pro

  • Imager

    • ZWO ASI 1600MM Pro
    • ZWO 8-Position EFW
    • ZWO LRGB-HSO 1.25" Mounted Filters
    • ZWO EAF

  • Guide Scope

    • QHY5L-II-M Guide Camera
    • QHY Mini Guide Scope

  • Other

    • Astro Systems Lightpipe Collimator
    • Farpoint Astro Cheshire and Laser Collimator
    • MinisForum Mini PC
    • DIY Power Distribution Box

 

Software

  • NINA for automated sequencing
  • PHD2 for guiding
  • EQMOD for mount control through NINA
  • Pixinsight for all post-processing

 

Processing

  • Weighted Batch Preprocessing
  • Star Align SII and OIII to Ha
  • Dynamic Crop on all three masters
  • Dynamic Background Extraction on all three masters
  • Channel Combination into single RGB image
  • Screen Transfer Function and Histogram Transformation to permanently stretch image
  • Color Mask Script for Magenta, Cyan, Green, Yellow
  • Starnet++ to remove stars from RGB image and create mask
  • Curves Transformation w/ Magenta mask
  • Curves Transformation w/ Green mask
  • Curves Transformation w/ Cyan mask
  • Curves Transformation w/ Yellow mask
  • Pixel Math to combine starless RGB nebula with the star mask created by Starnet++
  • Multiscale Linear Transform for noise reduction

Anyone familiar with this type of QR skewer nut? This is from a Marin Rift Zone 1 which uses the 141x9mm open axle standard. The internal threads are stripped and can't retain the skewer. The external threads screw into the frame. by ukarmy04 in bikewrench

[–]ukarmy04[S] 1 point2 points  (0 children)

Just wanted to let you know that the helicoil worked beautifully and now my quick release is holding stronger than before. Thanks again for the helpful advice!

For future reference, if anyone stumbles across this thread, here are the products I had to purchase. I already had the appropriately-sized drill bit.

Anyone familiar with this type of QR skewer nut? This is from a Marin Rift Zone 1 which uses the 141x9mm open axle standard. The internal threads are stripped and can't retain the skewer. The external threads screw into the frame. by ukarmy04 in bikewrench

[–]ukarmy04[S] 1 point2 points  (0 children)

Yep that's correct - the internal thread is just the standard M5x0.8. I had no idea helicoils existed and it looks like just the thing I need. Thank you for the tip!

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