NGC 7000: The North America Nebula

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The North America Nebula is large, covering an area of more than four times the size of the full moon; but its surface brightness is low, so normally it cannot be seen with the unaided eye. Binoculars and telescopes with large fields of view (approximately 3°) will show it as a foggy patch of light under sufficiently dark skies. However, using a UHC filter, which filters out some unwanted wavelengths of light, it can be seen without magnification under dark skies. Its prominent shape and especially its reddish color (from the hydrogen Hα emission line) show up only in photographs of the area.

Cygnus’s Wall is a term for the “Mexico and Central America part” of the North America Nebula. The Cygnus Wall exhibits the most concentratedstar formations in the nebula.

Imaging telescopes or lenses: Takahashi FSQ-106N
Imaging cameras: Apogee U16M
Mounts: Sky-Watcher NEQ6
Software: photoshop, Maxim DL, PixInsight LE, CCDStack2
Filters: Astrodon 5nm Halpha SII OIII
Accessories: Bosma 80/500 guiding scope
Dates: June 1, 2012
Frames: 30×900″

Autor:  Steve Yan
AstroPhotography of the day by SPONLI

12 January 2014

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