Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  M 21  ·  NGC 6514  ·  NGC 6531  ·  Trifid Nebula
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M20, 



    
        

            Andrej Karlic
M20
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M20

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M20, 



    
        

            Andrej Karlic
M20
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M20

Technical card

Imaging telescopes or lenses: SkyWatcher Quattro 8" F/4 Carbon Fibre Newtonian

Imaging cameras: ZWO ASI1600MM-PRO

Mounts: Skywatcher HEQ5 PRO (belt modification)

Guiding telescopes or lenses: SkyWatcher Finder/Guider 9x50

Focal reducers: Skywatcher F4 aplanatic coma corrector

Software: Topaz denoise AI  ·  Ivo Jäger StarTools v1.5  ·  Craig Stark Nebulosity 4.1

Filters: ZWO LRGB 31mm  ·  ZWO Ha 31mm 7nm

Accessory: ZWO 8x 1.25" Filter Wheel (EFW)  ·  Zwo ASIAIR


Dates:July 29, 2019July 30, 2019

Frames:
ZWO Ha 31mm 7nm: 46x60" (gain: 139.00) -10C bin 1x1
ZWO LRGB 31mm: 135x60" (gain: 139.00) -10C bin 1x1

Integration: 3.0 hours

Darks: ~20

Flats: ~20

Avg. Moon age: 27.13 days

Avg. Moon phase: 6.67%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 4089180

RA center: 18h 2' 37"

DEC center: -23° 1' 55"

Pixel scale: 1.067 arcsec/pixel

Orientation: 15.899 degrees

Field radius: 0.758 degrees


Resolution: 4080x3084

Data source: Traveller

Description

This is LHaGB image.

L 59x60s
G 40x60s
B 36x60s
Ha 46x60s

Comments

Revisions

  • M20, 



    
        

            Andrej Karlic
    Original
  • Final
    M20, 



    
        

            Andrej Karlic
    B

Sky plot

Sky plot

Histogram

M20, 



    
        

            Andrej Karlic