Amateur Astrophotographie Landos France

Posts tagged “Pelican Nebula SHO

Pelican Nebula SHO

Pelikan-SHO_web

Optics/mount : 12″ACF 2.7m AP-Reduzer Alt-5
Camera/filters: Atik 11002 AstrodonHa/OIII/SII
Exposure:12×600 Ha, 7×600 OIII/SII all2bin
28 August 2014

The Pelican Nebula (also known as IC 5070 and IC 5067) is an H II region associated with the North America Nebula in the constellation Cygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name. The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a molecular cloud filled with dark dust.

The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555. Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different. @wikipedia

IC 5067/70 est une très grande nébuleuse en émission (2,5 fois le diamètre de la pleine Lune). Elle se nomme aussi la ‘nébuleuse du Pélican.
Elle se trouve juste à côté de la très grande et célèbre NGC 7000 (la nébuleuse de l’Amérique du Nord). Elle doit être observée aux jumelles. Attention, sa puissante voisine atténue un peu la beauté de cette nébuleuse.