M16 - The Eagle Nebula, 


            Jason Guenzel

M16 - The Eagle Nebula

Technical card

Imaging telescopes or lenses: CELESTRON EdgeHD 800

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Orion Atlas Pro AZ/EQ-G

Guiding telescopes or lenses: CELESTRON EdgeHD 800

Guiding cameras: ASI120MM

Focal reducers: Celestron 0.7x Focal Reducer

Software: PixInsight  ·  Sequence Generator Pro  ·  Adobe Photoshop  ·  PHD 2

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

Accessory: Moonlite CHL 2.5" Large Format Crayford Edge Focuser  ·  Orion Thin Off-Axis Guider (TOAG)

Dates:April 29, 2018April 30, 2018May 8, 2018May 9, 2018May 17, 2018

Astronomik H-alpha 6nm CCD 1.25": 37x240" (gain: 139.00) -20C bin 1x1
Astronomik OIII 6nm CCD 1.25": 35x240" (gain: 139.00) -20C bin 1x1
Astronomik SII 6nm CCD 1.25": 30x240" (gain: 139.00) -20C bin 1x1

Integration: 6.8 hours

Darks: ~50

Flats: ~50

Bias: ~256

Avg. Moon age: 15.53 days

Avg. Moon phase: 57.52%

Bortle Dark-Sky Scale: 5.00

Basic astrometry details

Astrometry.net job: 2067456

Resolution: 3063x2304

Data source: Unknown


Perhaps the Eagle Nebula is one of those targets that needs no introduction. The Hubble "Pillars of Creation" image made this area instantly recognizable, even to those not skilled in the art. But, it is still one of my more favorite targets and thought it was a suitable match as a first-light image for a new set of narrowband filters. This image was shot through 6nm Ha, OIII, and SII Astronomik filters that now sit happily in my filter wheel. I tinkered with this image a lot until I collected enough data to be satisfied. The filters performed very well and seem to be "keepers".

To show off the diffuse nebulosity in the area, I decided on a starless presentation. Revision C is a starry version. Which do you prefer?




Jason Guenzel
License: None (All rights reserved)


  • M16 - The Eagle Nebula, 


            Jason Guenzel
  • Final
    M16 - The Eagle Nebula, 


            Jason Guenzel


Description: Starry


M16 - The Eagle Nebula, 


            Jason Guenzel