NoneOptics: Borg 101ED
at f/4.1 Mount: Paramount MX
using The SkyX ProCamera: QSI 683WS-8Filters: Astrodon
Ha 3nm, OIII 3nm, SII 3nmExposure:
460 Mins or 7 2/3 hours, [18x 1200s Ha, 5x 1200s OIII, SII was not used as it showed virtually no data], Binned 1x1Accessories:
Auto guided with Borg 45ED & Starlight Xpress Lodestar
. Feathertouch focuser using FocusMax 3.8.0Location:
Taken over several nights from December 2nd to December 18th, 2014 Notes:
Image acquisition with Maxim DL Pro
Processing: Image calibration, align, and combine in Maxim DL Pro. Levels, curves, cosmetic adjustments and crop/resize in Photoshop. False colour image mapping Ha to RED, OIII to Blue and creating a synthetic GREEN with Ha and OIII data using this method
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
Link to Ha image: http://astromarina.zenfolio.com/p264248004/h2bcd90a1#h2bcd90a1
Sh2 -132 is faint emission nebula visible in the constellation of Cepheus .
It is located on the southern edge of the constellation, not far from the border with Lizard , along the plane of the Milky Way ; the best time for your observation in the evening sky falls between the months of July and December and is greatly facilitated by observers in the northern hemisphere.
Sh2-132 is located at a distance of almost 3200 parsecs (about 10400 light years ), putting it in the Perseus Arm , in the region of Cepheus OB1, a large, bright OB association . The stars responsible for the ionization of its gases are very hot and massive; in particular, There are two stars of Wolf-Rayet stars , known by the initials HD and HD 211 564 211 853 (the latter also having the initials WR 153), as well as a star of spectral class O8.5V and a dozen stars of class B. Around the star class O and one of the stars of Wolf-Rayet extends a bubble clearly visible in the band of radio waves , identified with the initials B Shell, probably originated from the stellar wind of the two massive stars. A structure similar but smaller, Shell A, hosts near its center a star class K. It is believed that in the nebula to have taken place in the past processes of star formation chain; currently these processes appear to be suspended, since there is no trace of recent activity.  In the direction of the nebula are identified nine springs of infrared radiation  and a maser emission with H 2 O .  [6 ]