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Contains:  M 16, Eagle nebula, NGC 6611
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Eagle Nebula, 





    
        

            Samuel
Eagle Nebula

Eagle Nebula

Technical card

Resolution: 1800x1800

Dates:May 27, 2015May 28, 2015June 7, 2015June 8, 2015June 9, 2015

Frames:
Baader Planetarium B 36mm: 15x450" bin 2x2
Baader Planetarium G 36mm: 13x451" bin 2x2
Baader Planetarium H-Alpha 7nm: 15x1800" bin 1x1
Baader Planetarium L 36mm: 15x900" bin 1x1
Baader Planetarium R 36mm: 15x450" bin 2x2

Integration: 16.6 hours

Avg. Moon age: 16.30 days

Avg. Moon phase: 66.08%

Astrometry.net job: 1362913

RA center: 274.707 degrees

DEC center: -13.825 degrees

Pixel scale: 0.957 arcsec/pixel

Orientation: 177.010 degrees

Field radius: 0.338 degrees

Locations: Observatorio remoto Tomas Lopez en AstroCamp, Nerpio, Albacete, Spain

Description

The Eagle Nebula (catalogued as Messier 16 or M16, and as NGC 6611, and also known as the Star Queen Nebula and The Spire) is a young open cluster of stars in the constellation Serpens, discovered by Jean-Philippe de Chéseaux in 1745–46. Both the "Eagle" and the "Star Queen" refer to visual impressions of the dark silhouette near the center of the nebula, an area made famous as the "Pillars of Creation" photographed by the Hubble Space Telescope. The nebula contains several active star-forming gas and dust regions, including the Pillars of Creation.

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.

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. 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. 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.

The descriptive names reflect impressions of the shape of the central pillar rising from the southeast into the central luminous area. The name "Star Queen Nebula" was introduced by Robert Burnham, Jr., reflecting his characterization of the central pillar as the Star Queen shown in silhouette.

Comments

Author

samueldl
Samuel
License: Attribution-NonCommercial Creative Commons
4192
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Eagle Nebula, 





    
        

            Samuel