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Hemisphere:  Northern  ·  Contains:  Bubble Nebula, M 52, NGC 7538, NGC 7635, NGC 7654, The star 4Cas
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m52 LHaRGB, 



    
        

            ceteris_paribus
m52 LHaRGB
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m52 LHaRGB

Technical card

Imaging telescopes or lenses: William Optics Gran Turismo 71 APO

Imaging cameras: ASI 1600MM-Pro

Mounts: 10Micron GM1000HPS

Focal reducers: StellarVue 0.8x Reducer/Flattener

Software: PinInsight 1.8  ·  Sequence Generator Pro

Filters: Chroma Ha 3nm  ·  Chroma LRGB


Frames:
Chroma Blue 2" unmounted: 100x60" -10C bin 1x1
Chroma Green 2" unmounted: 100x60" -10C bin 1x1
Chroma Ha 3nm: 100x300" -10C bin 1x1
Chroma Luminance 2" unmounted: 600x60" -10C bin 1x1
Chroma Red 2" unmounted: 100x60" -10C bin 1x1

Integration: 23.3 hours

Bortle Dark-Sky Scale: 8.00


Basic astrometry details

Astrometry.net job: 3960145

RA center: 23h 23' 3"

DEC center: +61° 41' 13"

Pixel scale: 2.299 arcsec/pixel

Orientation: 159.530 degrees

Field radius: 1.455 degrees


Resolution: 3560x2848

Data source: Backyard

Description

M52 open cluster including Bubble Nebula.

Captured over the course of 5 nights near the new moon.
10 hours of luminance (600x60s)
1.5 hours each of R/G/B (100x60s for R, G, B)
8 hours of HA (100x300s)

Workflow:
Lum: Calibration, ABE, Histogram Transformation
R/G/B: Calibration, RGB Combine, ABE, Histogram Transformation, Background Calibration, Color Correction, LRGB Combine with Lum
HA: Calibration, ABE, Histogram Transformation, NBLRGB Combine Script
LHaRGB: Histogram Transform to clean up a bit

I didn't want to lose any nebulosity, so I didn't do much of a crop. Thus, my unmatched focal reducer is showing its oblong stars, but I find it easy to ignore.

Comments

Author

ceteris_paribus
ceteris_paribus
License: None (All rights reserved)
1410
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m52 LHaRGB, 



    
        

            ceteris_paribus