Hemisphere:  Southern  ·  Constellation: Serpens (Ser)  ·  Contains:  Eagle Nebula  ·  IC 4703  ·  M 16  ·  NGC 6611  ·  Star Queen
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Eagle Nebula (M16) in Serpens, 


            Steve Milne
Eagle Nebula (M16) in Serpens
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Technical card

Imaging telescopes or lenses: TEC-140

Imaging cameras: QSI 690 WSG-8

Mounts: 10 Micron GM2000 HPS II UP

Guiding telescopes or lenses: TEC-140

Guiding cameras: Starlight Xpress Lodestar X2

Focal reducers: TEC Field Flattener

Software: Sequence Generator Pro  ·  Adobe Photoshop 6 CS  ·  Open PHD PHD 2.5  ·  Pixinsight 1.8

Filters: Astrodon OIII 3nm  ·  Astrodon SII 3nm  ·  Ha 3nm

Dates:Sept. 10, 2020

Ha 3nm: 16x1200" bin 1x1
Astrodon OIII 3nm: 14x1200" bin 1x1
Astrodon SII 3nm: 15x1200"

Integration: 15.0 hours

Avg. Moon age: 22.25 days

Avg. Moon phase: 48.89%

Basic astrometry details

Astrometry.net job: 3892944

RA center: 18h 18' 51"

DEC center: -13° 49' 58"

Pixel scale: 0.743 arcsec/pixel

Orientation: 359.608 degrees

Field radius: 0.442 degrees

Resolution: 2672x3353

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


The Eagle Nebula (M16, IC 4703) surrounds the star cluster NGC 6611. It lis around 5,700 light years away in the constellation of Serpens. The star cluster was discovered by Jean-Philippe de Chéseaux in 1745-46. The nebula was first observed by Charles Messier on 3rd June 1764, which was a Sunday.

The Eagle was photographed between 20 August and 10 September 2020 from a rig in Spain that is privately owned and operated by Barry Wilson and me.

Capture details are as follows:

Telescope: TEC 140
Camera: QSI 690
Filters: Astrodon
Mount: 10 Micron GM2000HPS

Ha: 16 x 1200s
OIII: 14 x 1200s
SII: 15 x 1200s

A total of 15 hours exposure.

Processing: Steve Milne
Data: Steve Milne & Barry Wilson


Sky plot

Sky plot


Eagle Nebula (M16) in Serpens, 


            Steve Milne

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