SH2-131 Optics: Borg 101ED
at f/4.1 Mount: Paramount MX
using The SkyX Pro Camera: QSI 683WS-8 Filters: Astrodon
2000 Mins or 33 1/3 hours Ha, Binned 1x1, 1200s exposures Accessories: Feathertouch focuser
using FocusMax 184.108.40.206 Location: Burlington, ON Date:
Taken over several nights and several months from August 27th, to November 4th, 2016 Notes:
This is the longest acquisition time I have put into one image to date. This is also my first Unguided Image using Software Bisque's TPoint & Protrack
software. No guiding of any kind was used for any of the full 60 hours of acquisition. Image acquisition was done with TheSkyX Pro CAO
automation software. Processing:
Image calibration, align, and combine in Maxim DL Pro. Levels, curves, cosmetic adjustments and crop/resize completed in Photoshop CS5.
Calibrated w/20 Darks, 100 Bias, 50 Flats using a flat pannel.
CCD temperature was -25C. Image was taken from my backyard Observatory
. Link to Narrowband: http://astromarina.zenfolio.com/p52895960/h3a8c28ad#h3a8c28ad
The Elephant's Trunk nebula
is a concentration of interstellar
gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus
about 2,400 light years
away from Earth.
The piece of the nebula
shown here is the dark, dense globule IC 1396A; it is commonly called the Elephant's Trunk nebula because of its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star (HD 206267
) that is just to the west of IC 1396A. The entire IC 1396 region is ionized by the massive star, except for dense globules.