SH2-131 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:
3580 Mins or 59 2/3 hours, [33 1/3 Ha, 14 2/3 OIII, 11 2/3 SII], Binned 1x1, 1200s exposures Accessories: Feathertouch focuser
using FocusMax 220.127.116.11 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 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, 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 pannel.
CCD temperature was -25C. Image was taken from my backyard Observatory
. Selected as Sky News Photo of the Week: http://www.skynews.ca/photo-of-the-week-the-elephant-trunk-nebula-by-barry-schellenberg/ Profiled in Software Bisque's advertisement in Sky & Telescope: https://www.dropbox.com/s/xrbr889lsohl9vm/Inspirational%20Ad%20Full%20Bleed.pdf?dl=0 Link to Ha: http://astromarina.zenfolio.com/p264248004/h3d606a89#h3d606a89
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.