Hemisphere:  Southern  ·  Constellation: Sculptor (Scl)  ·  Contains:  NGC 253  ·  Sculptor Filament  ·  Silver Coin
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NGC253 in HaLRGB, 



    
        

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NGC253 in HaLRGB
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NGC253 in HaLRGB

Getting plate-solving status, please wait...
NGC253 in HaLRGB, 



    
        

            robonrome
NGC253 in HaLRGB
Powered byPixInsight

NGC253 in HaLRGB

Acquisition details

Dates:
July 15, 2021
Frames:
Antlia 3.5nm Narrowband H-alpha: 22×300(1h 50′) bin 2×2
Baader Blue: 35×180(1h 45′) bin 2×2
Baader Green: 35×180(1h 45′) bin 2×2
Baader Luminance: 35×180(1h 45′) bin 2×2
Baader Red: 35×180(1h 45′) bin 2×2
Integration:
8h 50′
Avg. Moon age:
5.36 days
Avg. Moon phase:
29.18%

Basic astrometry details

Astrometry.net job: 4753174

RA center: 00h47m25s.7

DEC center: -25°1901

Pixel scale: 1.622 arcsec/pixel

Orientation: 87.521 degrees

Field radius: 0.780 degrees

Resolution: 2812x2022

File size: 1.5 MB

Locations: Backyard, Brisbane, Queensland, Australia

Data source: Backyard

Description

One of the few larger spiral galaxies we can get a good view on in the southern hemisphere, NGC253 has long been a favourite of mine, but this is the first time I've attempted to image it with a dedicated mono camera. 

This is LRGB using 180s expsoures to a total of 7 hours and another near 2 hour of Ha at 300s exposures to bring out the emission nebula a little better.

Each channel stacked and saved separately out of APP - I seem to be having some problems with Green and Red flats...not sure why.

I'm trialling the aplha version of Startools 1.8 here which does the LRGB combine and then let's you use the Ha as a narrowband "accent" for the emission nebular colour.

Final tweaks in PS CC.

Comments

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NGC253 in HaLRGB, 



    
        

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