Other Names: Caldwell 20, SH 2-117, LBN 373
Optics: Borg 101ED at f/4.1
Mount: Paramount MX using
The SkyX Pro Camera: QSI 683WS-8 Filters: Astrodon Ha 3nm, OIII 3nm, SII 3nm
Exposure: 1480 Mins or 24 2/3 hours, [10 2/3 Ha, 9 2/3 OIII, 4 1/3 SII], Binned 1x1, 1200s & 1800s exposures
Accessories: Auto guided with Borg 45ED &
Starlight Xpress Lodestar Feathertouch focuser using
FocusMax 4.1.0.40 Location: Burlington, ON Date: Taken over several nights and several months from July 13th, to November 30th, 2016
Notes: Image acquisition was done with
TheSkyX Pro CAO using
MaxPilote automation software.
Processing: Image calibration, align, and combine in Maxim DL Pro. Levels, curves, SHO colour mapping, cosmetic adjustments and crop/resize completed in Photoshop CS5.
Calibrated w/20 Darks, 100 Bias, 50 Flats of each filter using a flat panel.
CCD temperature was -25C. Image was taken from my backyard
Observatory.
Link to Ha: http://astromarina.zenfolio.com/p264248004/h30cd590b#h30cd590b 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".