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THE CYGNU´S WALL - NORTH AMERICA

NEBULAE

The     North     America     Nebula     (NGC     7000     or Caldwell     20)     is     an     emission     nebula     in     the constellation Cygnus, close to Deneb. 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. 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.

THE CYGNU´S WALL - NORTH AMERICA

NEBULAE

Place:        Ager-Lleida-Spain SQM:         21.5 Dates:       Several days (July-August 2016) Details Telescope:  GSO RC14 Truss Mount:        ASA DDM85 Camera:      Moravian G3-11000 Focuser:      Seletek Armadillo 2 Flattener:    CCDT67 0.67x Exposure:    L:14x600 sec bin1                       RGB: 34x300 sec bin2                       H-Alpha: 26x900 sec bin1 Processing:  Pixinsight & Photoshop CC Software:     MaximDL, Sequence,Autoslew Control Remote:  Talon6

Nebula

& Dust