The Lion Nebula
Sh2-132
Sh2-132 is a large emission nebula visible in the constellation Cepheus. It is located on the southern edge of the constellation, a short distance from the boundary with the Lizard, along the plane of the Milky Way.

Sh2-132 is located at a distance of almost 10400 light-years. The stars responsible for the ionization of its gas are very hot and massive; in particular, two Wolf-Rayet stars have been identified, known as HD 211564 and HD 211853 (the latter also having the abbreviation WR 153), as well as a spectral class O8.5V star and about ten B-class stars. Chain star formation processes are believed to have taken place in the nebula in the past; currently these processes appear to be suspended, since there is no evidence of recent activity. Nine sources of infrared radiation and a maser with H2O emissions have been detected in the direction of the nebula.

Nominated for Top Pick on Astrobin


Image Details
Date
September 26 & October 22, 2023
LOCATion
Hannover (Germany)
Sky Quality
Bortle 5
Telescope
Celestron RASA 8 (203/400 f/2)
Mount
Skywatcher EQ6-R Pro
Main Cameras
ZWO ASI 2600 MC Pro
Gain 100, Offset 18, -10°
TS 2600 MP
Gain 100, Offset 50, -10°
Focuser
Celestron Motorfocus
Processing
Astropixelprocessor, Photoshop, Pixinsight
Filter
Baader H-Alpha Highspeed 3.5nm
Baader O-III Highspeed 4nm
Baader UV/IR-Cut Filter
Exposure
RGB: 116 × 5″ (9′ 40″)
Ha: 210 × 120″ (7h)
OIII: 196 × 120″ (6h 32′)
Total: 13h 41′ 40″
Guiding
ZWO ASI 120MM, PHD2
Calibration
Flats, Darks, Darkflats
Software
N.I.N.A., EQMod
Other
Artesky Filter Holder
  
  
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