Messier 17
In this dense field of stars of our galaxy, in the constellation Sagittarius, is one of the brightest diffuse nebulae (visual magnitude 6.0, apparent size 46x37 arcminutes). Also known by the names Swan, Omega, the lobster. Visible to the naked eye in a dark sky under especially favorable conditions, especially if we use as a guide, the neighbor of the Eagle Nebula (Messier 16). Is an emission nebula with a diameter of 15 light years. The distance from us is estimated at 5-6.000 light years.
The red color is due to the presence of hydrogen at elevated temperatures due to radiation of young stars. With small telescopes or binoculars, it competes in splendor the great nebula of Orion, of which is greater (estimated to have a mass 800 times that of our sun).
35 bright but indistinct stars, six times hotter and 20 to 30 times more massive of our sun, contained in this nebula. The star formation in the nebula is already active or just born. Together with the neighbor M16, considered to belong to the same giant cluster of interstellar material.
Technical data
Telescope : FSQ 106
Mount : NEQ6
Camera : QSI 683
Guiding : Off axis, Meade DSI I, PHD
LRGB
Luminance 11x300s, bin2
Red 9x300s, Green 6x300s, Blue 6x300s, all bin2
Processed in PixinSight, Photoshop
Skyros Island, Greece, 2013
During my involvement in photographing the "deep sky" I missed the accompaniment of music, as my musical experience guides me. So I decided to fill my astrophotos with my music. From September 2016 as a starting point, therefore, together with the Flaming Star Nebula, I present to You, the ‘Floydish Pulsar I’, as my first musical composition (composition, performance and production by me), always inspired by these images.
Parallel Words ! and Dancing Stars I, complete my first trilogy.
Emjoy !