Image Credit & Copyright: Martin Pugh
The prominent ridge of emission featured in this vivid skyscape is known as the Cygnus Wall. Part of a larger emission nebula with a distinctive shape popularly called The North America Nebula, the ridge spans about 10 light-years along an outline that suggests the western coast of Mexico. Constructed from narrowband image data, the cosmic close-up maps emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. The result highlights the bright ionization front with fine details of dark, dusty forms in silhouette. Sculpted by energetic radiation from the region’s young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away. To find it, look northeast of bright star Deneb in the high flying constellation Cygnus.
APOD NASA 03-Jul 14
The North America Nebula (NGC 7000 or Caldwell 20) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. It is sometimes incorrectly called the “North American Nebula”. Cygnus’s Wall is a term for the “Mexico and Central America part” of the North America Nebula. The Cygnus Wall exhibits the most concentrated star formations in the nebula.
Imaging telescopes or lenses: Teleskop Service 10″ Newton F4.8
Imaging cameras: Atik 383L+
Mounts: Astro-Physics Mach 1 GTO
Guiding telescopes or lenses: Teleskop Service TS Starscope Refractor 90/900mm
Guiding cameras: Orion StarShoot Autoguider
Focal reducers: ASA 2″ x 0,73 Corrector/Reducer 2KORRR
Software: PixInsight PixInsinght 1.8 RC7
Filters: Baader Planetarium Ha 7nm, Baader Planetarium SII 8nm, Baader Planetarium OIII 8.5nm
Dates: Aug. 24, 2013, Sept. 13, 2013
Baader Planetarium Ha 7nm: 20×300″ -20C bin 1×1
Baader Planetarium OIII 8.5nm: 20×300″ -20C bin 2×2
Baader Planetarium SII 8nm: 20×300″ -20C bin 2×2
Integration: 5.0 hours
Flat darks: ~20
Autor: Pekka Simell
AstroPhotography of the day by SPONLI
16 January 2014
We select the best works of amateur astrophotographers with details of equipment, shooting processing etc.