Hemisphere:  Northern  ·  Contains:  NGC 7538  ·  NGC7822  ·  Sh2-171
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Sh2-158 and Sh2-161b, 


            Jose Carballada
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Sh2-158 and Sh2-161b

Imaging telescopes or lenses: Teleskop Service TS Photoline 107mm f/6.5 Super-Apo  ·  Altair Astro RC250-TT 10" RC Truss Tube

Imaging cameras: ZWO ASI183MM-Cool  ·  ZWO ASI1600MM-Cool

Mounts: Skywatcher EQ6R Pro  ·  Mesu 200 Mk2

Guiding telescopes or lenses: Celestron OAG Deluxe  ·  Teleskop Service TSOAG9 Off-Axis Guider

Guiding cameras: ZWO ASI290 Mini  ·  ZWO ASI174 Mini

Focal reducers: Riccardi Reducer/Flattener 0.75x  ·  Telescope-Service TS 2" Flattener

Software: Pleiades Astrophoto PixInsight  ·  Seqence Generator Pro

Filters: Astrodon O-III 36mm - 5nm  ·  Astrodon S-II 36mm - 5nm  ·  Astrodon R Gen.2 E-series 36mm  ·  Astrodon G Gen.2 E-series 36mm  ·  Astrodon B Gen.2 E-series 36mm  ·  Astrodon HA 36mm - 5nm  ·  Astrodon L Gen.2 E-series 36mm

Accessory: Pegasus Astro Ultimate Powerbox v2  ·  Pegasus Astro Falcon Rotator  ·  ZWO EFW  ·  Astrolink 4.0 mini  ·  MoonLite NiteCrawler WR30  ·  TALON6 R.O.R  ·  MoonLite CSL 2.5" Focuser with High Res Stepper Motor

Dates:Oct. 24, 2020Oct. 25, 2020Nov. 8, 2020Nov. 12, 2020Nov. 13, 2020Nov. 17, 2020

Astrodon B Gen.2 E-series 36mm: 110x30" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 110x30" (gain: 75.00) -15C bin 1x1
Astrodon HA 36mm - 5nm: 224x600" (gain: 200.00) -20C bin 1x1
Astrodon O-III 36mm - 5nm: 117x600" (gain: 111.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 110x30" (gain: 75.00) -20C bin 1x1
Astrodon S-II 36mm - 5nm: 113x600" (gain: 111.00) -15C bin 1x1

Integration: 78.4 hours

Avg. Moon age: 16.02 days

Avg. Moon phase: 33.72%

Astrometry.net job: 4058638

RA center: 0h 3' 14"

DEC center: +67° 16' 4"

Pixel scale: 0.797 arcsec/pixel

Orientation: 0.709 degrees

Field radius: 0.399 degrees

Resolution: 2304x1684

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility


It's all about the NGC 7538 region in the constellation Cepheus.
This region of active star formation is located about 9,100 light-years from Earth.

The picture is a result of more than 78 hours of integration time in narrow band and rgb channels.
I could say that is a more complicated target than I thought at the beginning, it was difficult to post process this image due the high dynamic range needed to reveal all the details.



Jose Carballada
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Sh2-158 and Sh2-161b, 


            Jose Carballada