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 Sh2-132 
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About:
Sh2-132 is extensive emission nebula visible in the constellation of Cepheus. It locates on the southern edge of the constellation, a short distance 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 it is considerably easier for observers placed in the regions of the northern hemisphere of the Earth. Sh2-132 is located at a distance of about 3200 parsecs (almost 10,400 years light), putting it inside the Perseus arm, in the region of Cepheus OB1, a large and bright OB association. The stars responsible for the ionization of its gases are very hot and massive; in particular, we have identified two of Wolf-Rayet stars, known by the initials HD 211564 and HD 211853 (the latter also having the initials WR 153), in addition to a star of spectral class O8.5V and a dozen stars of class B. Around the O-type star and one of the stars of the Wolf-Rayet extends a bubble visible in the band of radio waves, identified by the initials Shell B, probably originated from the stellar wind of the two massive stars. A structure similar to but smaller, Shell A, hosts near its center a star of class K. It is believed that in the nebula have taken place in the past processes of star formation in the chain; currently these processes appear to be suspended, since there is no trace of recent activity. In the direction of the nebula were identified nine infrared radiation sources and a maser emissions with H2O. [Text from Wikipedia]



Optics: Takahashi FSQ-106EDXIII F/3.6 383mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: QSI-683WSG
Filters: Astrodon E Series Gen II LRGB 31mm - Ha 5nm
Guiding Systems: SX Lodestar
Dates/Times: 01-02 September 2014
Location: Pragelato - Turin - Italy
Exposure Details: H:R:G:B => 180:60:60:60 = > (18x10):(12x5):(12x5):(12x5) All Bin1 [num x minutes]
Cooling Details: -25 C
Acquisition: Maxim DL/CCD, TheSkyX, Voyager
Processing: CCDStack2+, PixInsight, PS CS5
Mean FWHM: 2.48
SQM-L: 21.12