Sh2-187 in the constellation Cassiopeia
Sh2-187, LDN 1314, 1316, 1317, 1319, 1322, 1323, 1324
Sh2-187, located in the constellation Cassiopeia, is a small but active star-forming region approximately 4,700 light-years (1,440 parsecs) away. It is part of a larger molecular complex, with a visible section surrounded by a massive envelope of neutral hydrogen, weighing around 7,600 solar masses.

The region contains high-velocity molecular outflows and numerous infrared sources, including the powerful emitters S 187 IRS and IRAS 01202+6133, which indicate ongoing star formation. With an estimated age of 100,000 to 200,000 years, Sh2-187 is a relatively young and dynamic stellar nursery, surrounden by some dark nebulae (LDN 1314, 1316, 1317, 1319, 1322, 1323, 1324).


Image Details
Date
Dec 28, 2024 & Jan 12, 2025
LOCATion
Hannover (Germany)
Sky Quality
Bortle 5
Telescope
Skywatcher 200/1000 @750mm f/3.75
Mount
Skywatcher EQ6-R Pro
Main Cameras
ZWO ASI 2600 MC Pro
Gain 100, Offset 18, -10°
TS 2600 MP
Gain 100, Offset 200, -10°
Focuser
ZWO EAF
Filter
Baader UV/IR-Cut Filter
Antlia EDGE H-alpha 4.5nm
Exposure
RGB: 521× 60″ (8h 41′)
Ha: 420 × 120″ (14h)
Total: 22h 41‘
Guiding
ZWO ASI 120MM, PHD2
Calibration
Flats, Darks, Darkflats
Software
N.I.N.A., EQMod
Other
Starizona Nexus Reducer & Corrector
Processing
Astropixelprocessor, Photoshop, Pixinsight
  
  
Gallery
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