• lefty7283@lemmy.worldOPMEnglish
    1·
    5 months ago

    I’ve finally moved away from my bortle 9 balcony! Only had one clear night so far and used it to map out my horizons, (a considerable improvement from the balcony) and spend a few hours on something bright and high up in the sky. Still got a huge ass-backlog of pics from the old place to process, but I’ll chip away at that eventually. Captured on June 11th, 2026 from a Bortle 6 zone.

    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: 3 hours 2 minutes (Camera at half unity gain, -15°C)

    • L - 37x120"

    • R - 18x120"

    • G - 18x120"

    • B - 18x120"

    • 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

    • Multiscale Gradient Correction with MARS Project data

    Luminance linear:

    • BlurXterminator (correct only)

    • ArcsinhStretch + HistogramTransformation to stretch nonlinear

    RGB Linear:

    • Channelcombination to make color image from RGB stacks

    • SpectrophotometricColorCalibration

    • BlurXTerminator (correct only)

    • HSV Repair

    • ArcsinhStretch + HistogramTransformation to stretch nonlinear

    • Slight curves saturation boost and histogram adjustments

    Nonlinear Processing

    • LRGBCombination to combine stretched RGB and L images

    • DeepSNR Noise reduction

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

    • NoiseXterminator for chrominance noise reduction

    • Invert > SCNR (masked) > Invert to remove this one very magenta colored star

    • More curves

    • Dynamic crop in on just the cluster

    • Resample to 75%

    • DynamicCrop in on just the galaxy

    • Annotation