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Contains:  Eagle nebula, M 16, NGC 6611
Getting plate-solving status, please wait...
M16 - The Eagle Nebula (Ha-SHO), 


            Olivier Ravayrol
M16 - The Eagle Nebula (Ha-SHO)
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M16 - The Eagle Nebula (Ha-SHO)

Technical card

Imaging telescopes or lenses: Orion 200mm f/5 Newtonian

Imaging cameras: ZWO ASI1600MM Pro

Mounts: Orion Sirius EQ-G (HEQ5) - belt mod

Guiding telescopes or lenses: Orion Short Tube 80/400

Guiding cameras: iNova PL1-M

Focal reducers: Baader Planetarium MPCC Mark III Coma Corrector

Software: Adobe Phosotshop CS5  ·  Adobe Lightroom 5.4  ·  SIRIL

Filters: Astronomik OIII CCD 6nm 1.25"  ·  Astronomik SII CCD 6nm 1.25"  ·  Astronomik H-Alpha CCD 6nm 1.25"

Accessory: ZWO EFW 8 x 1.25″/31mm  ·  CatsEye TELETUBE - INFINITY - BLACKCAT  ·  Orion Low Profile Focuser  ·  Pierro-Astro Masques de BAHTINOV  ·  Lacerta Flatfieldbox 290mm  ·  Pierro-Astro USB autoguider

Dates:Sept. 12, 2019

Astronomik H-Alpha CCD 6nm 1.25": 20x300" (gain: 75.00) -20C bin 1x1
Astronomik OIII CCD 6nm 1.25": 8x150" (gain: 75.00) -20C bin 2x2
Astronomik SII CCD 6nm 1.25": 10x150" (gain: 75.00) -20C bin 2x2

Integration: 2.4 hours

Darks: ~10

Flats: ~15

Bias: ~100

Avg. Moon age: 13.26 days

Avg. Moon phase: 97.46%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details job: 3250032

RA center: 18h 18' 50"

DEC center: -13° 47' 34"

Pixel scale: 0.776 arcsec/pixel

Orientation: 15.991 degrees

Field radius: 0.534 degrees

Resolution: 3382x3624

Data source: Own remote observatory


M16 - The Eagle Nebula with Pillars of Creation (Ha-SHO)
Tournefeuille, France
Ha-SHO (Narrow band filters 6nm)
Bin1x1 Ha:1h40, Bin2x2 OIII:20mn & SII:25mn exposure time
200/1000 mm Newtonian telescope
Camera ZWO ASI1600MM Pro
Preprocessing with SIRIL
Image processing with Photoshop
Final touch with Lightroom



Olivier Ravayrol
License: None (All rights reserved)


  • M16 - The Eagle Nebula (Ha-SHO), 


            Olivier Ravayrol
  • M16 - The Eagle Nebula (Ha-SHO), 


            Olivier Ravayrol
  • Final
    M16 - The Eagle Nebula (Ha-SHO), 


            Olivier Ravayrol


Description: Improvement of the white balance


Description: New technique treatment of luminance in order to have an homogen light everywhere. Less tight histogram in dark tones

Sky plot

Sky plot


M16 - The Eagle Nebula (Ha-SHO), 


            Olivier Ravayrol