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Contains:  Eagle nebula, M 16, NGC 6611
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Eagle nebula, M16 in Ha, 


            Matt Hughes
Eagle nebula, M16 in Ha
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Eagle nebula, M16 in Ha

Technical card

Dates:June 16, 2018July 13, 2018

Astrodon 5nm Ha 36mm: 15x1200" -15C
Astrodon 5nm Ha 36mm: 9x1200" -20C

Integration: 8.0 hours

Flats: ~40

Bias: ~130

Avg. Moon age: 1.77 days

Avg. Moon phase: 5.32%

Bortle Dark-Sky Scale: 7.00

Basic astrometry details job: 2157775

RA center: 18h 18' 52"

DEC center: -13° 51' 10"

Pixel scale: 0.890 arcsec/pixel

Orientation: 33.266 degrees

Field radius: 0.517 degrees

Resolution: 3265x2610

Locations: Home, Gisborne, Victoria, Australia

Data source: Backyard


Taken from my rooftop. I found the Tak 1.6ext on the FSQ106 to have a bit of sag and had to throw away a lot of subs. I love this nebula and am working on a bi-colour version. Hoever I like the starless HA version here.

It was a real battle with the cloudy winter skies in Melbourne and work commitments trying to get all of the data.

The Eagle Nebula is part of a diffuse emission nebula, or H II region, which is catalogued as IC 4703. This region of active current star formation is about 7000 light-years distant. A spire of gas that can be seen coming off the nebula in the northeastern part is approximately 9.5 light-years or about 90 trillion kilometers long.[4]
The cluster associated with the nebula has approximately 8100 stars, which are mostly concentrated in a gap in the molecular cloud to the north-west of the Pillars.[5] The brightest star (HD 168076) has an apparent magnitude of +8.24, easily visible with good binoculars. It is actually a binary star formed of an O3.5V star plus an O7.5V companion.[6] This star has a mass of roughly 80 solar masses, and a luminosity up to 1 million times that of the Sun. The cluster's age has been estimated to be 1–2 million years.[7]
The descriptive names reflect impressions of the shape of the central pillar rising from the southeast into the central luminous area



Matt Hughes
License: None (All rights reserved)


  • Final
    Eagle nebula, M16 in Ha, 


            Matt Hughes


Description: Stars for plate solver

Sky plot

Sky plot


Eagle nebula, M16 in Ha, 


            Matt Hughes