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aquila ed omega
The Eagle Nebula (also known as M 16 or NGC 6611) is a large H II region in the constellation Serpent's Tail. It consists of a young open cluster of stars associated with an emission nebula composed of ionized hydrogen, listed as IC 4703.
Its distance has always been relatively uncertain, but it tends to be about 7000 light-years from Earth, thus placing it in the middle zone of the Sagittarius Arm; it contains some well-known formations, such as the Pillars of Creation, the long columns of dark gas originating from the stellar wind action of the components of the central cluster and which are also responsible for the nebula's own name, due to their shape. In them there are some young stellar objects, which testify that the processes of star formation are still in progress, although it is not clear whether these are favored or opposed by the action of the stellar wind of nearby stars, nor is it clear whether the wind actually affects these phenomena in any way. The cluster consists of a large number of very hot and bright blue supergiants; their typical age is just 2-3 million years, that is, less than one thousandth of the age of our Sun; The brightest star in the cluster is of magnitude 8.24, visible even with binoculars.
The nebula has been known since the eighteenth century and is one of the best known objects in the Messier Catalogue; it is easily revealed in photographs and is therefore a good subject for fans of amateur astrophotography.
The Omega Nebula (also known as the Swan Nebula, Horseshoe Nebula, Lobster Nebula or catalogue names M 17 and NGC 6618) is an emission nebula discovered by de Chéseaux in 1746 and rediscovered by Charles Messier in 1764, located in the constellation Sagittarius.
Shooting data:Camera canon eos 1100d fullspectrum,canon lens 75/300 at 255m,f 5/6,iso 1600.103x15s,10 dark,optolong filter l-pro eos clip,use of lx2 minitrack astroseguitor,sum with sequator and photoshop processing
aquila ed omega
The Eagle Nebula (also known as M 16 or NGC 6611) is a large H II region in the constellation Serpent's Tail. It consists of a young open cluster of stars associated with an emission nebula composed of ionized hydrogen, listed as IC 4703.
Its distance has always been relatively uncertain, but it tends to be about 7000 light-years from Earth, thus placing it in the middle zone of the Sagittarius Arm; it contains some well-known formations, such as the Pillars of Creation, the long columns of dark gas originating from the stellar wind action of the components of the central cluster and which are also responsible for the nebula's own name, due to their shape. In them there are some young stellar objects, which testify that the processes of star formation are still in progress, although it is not clear whether these are favored or opposed by the action of the stellar wind of nearby stars, nor is it clear whether the wind actually affects these phenomena in any way. The cluster consists of a large number of very hot and bright blue supergiants; their typical age is just 2-3 million years, that is, less than one thousandth of the age of our Sun; The brightest star in the cluster is of magnitude 8.24, visible even with binoculars.
The nebula has been known since the eighteenth century and is one of the best known objects in the Messier Catalogue; it is easily revealed in photographs and is therefore a good subject for fans of amateur astrophotography.
The Omega Nebula (also known as the Swan Nebula, Horseshoe Nebula, Lobster Nebula or catalogue names M 17 and NGC 6618) is an emission nebula discovered by de Chéseaux in 1746 and rediscovered by Charles Messier in 1764, located in the constellation Sagittarius.
Shooting data:Camera canon eos 1100d fullspectrum,canon lens 75/300 at 255m,f 5/6,iso 1600.103x15s,10 dark,optolong filter l-pro eos clip,use of lx2 minitrack astroseguitor,sum with sequator and photoshop processing