Hemisphere:  Northern
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SH2-132, the Lion(s) in Cepheus, 


            Jari Saukkonen
SH2-132, the Lion(s) in Cepheus
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SH2-132, the Lion(s) in Cepheus

Technical card

Imaging telescopes or lenses: Skywatcher Esprit 100ED Super APO Triplet

Imaging cameras: ZWO ASI 1600MM-Cool

Mounts: 10Micron GM1000HPS

Focal reducers: APM Riccardi 0.75x reducer/flattener

Software: PixInsight  ·  Adobe Lightroom CC  ·  Sequence Generator Pro  ·  Photoshop CC

Filters: Astrodon Ha 5nm  ·  Astrodon OIII 5nm  ·  Astrodon SII 5nm  ·  Astrodon E-series 2 R  ·  Astrodon E-series 2 G  ·  Astrodon E-series 2 B

Dates:Sept. 16, 2018

Astrodon E-series 2 B: 44x60" (gain: 76.00) -25C bin 1x1
Astrodon E-series 2 G: 44x60" (gain: 76.00) -25C bin 1x1
Astrodon E-series 2 R: 60x60" (gain: 76.00) -25C bin 1x1
Astrodon Ha 5nm: 74x300" (gain: 200.00) -25C bin 1x1
Astrodon OIII 5nm: 53x300" (gain: 200.00) -25C bin 1x1
Astrodon SII 5nm: 54x300" (gain: 200.00) -25C bin 1x1

Integration: 17.6 hours

Darks: ~50

Flats: ~25

Flat darks: ~50

Avg. Moon age: 6.94 days

Avg. Moon phase: 45.35%

Basic astrometry details

Astrometry.net job: 2556392

RA center: 22h 18' 36"

DEC center: +55° 48' 43"

Pixel scale: 2.505 arcsec/pixel

Orientation: 91.918 degrees

Field radius: 1.230 degrees

Resolution: 2500x2500

Locations: Komakallio, Kirkkonummi, Finland

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Imaged already last September, it took me a few tries and quite a while until I was able to complete the processing. I had completely different end result in my mind when I started, but somehow it ended up like this and I do like the end result a lot. The nebula is in SHO palette, stars are from RGB exposures.

I think there are actually two lions in the nebula, one big and one small. Can you find both?



Jari Saukkonen

Sky plot

Sky plot


SH2-132, the Lion(s) in Cepheus, 


            Jari Saukkonen