Hemisphere:  Northern
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SH2-155 - Cave Nebula, 


            Robert Eder
SH2-155 - Cave Nebula
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SH2-155 - Cave Nebula

Technical card

Imaging telescopes or lenses: Sky-Watcher 130/650 PDS Newton

Imaging cameras: Canon 600Dac

Mounts: SkyWatcher EQ6-R Pro

Guiding telescopes or lenses: Sky-Watcher Finderscope 9X50

Guiding cameras: Altair Astro GP CAM AR0130C

Focal reducers: SkyWatcher Synta Coma Corrector

Software: PHD2  ·  APT  ·  Astro Pixel Processor  ·  Astronomy Tools Action Set  ·  SharpCap3Pro  ·  Photoshop

Filters: OPTOLONG L-eNhance  ·  Astronomik L2 UV/IR Block

Dates:Aug. 20, 2020

50x180" ISO800
OPTOLONG L-eNhance: 20x600" ISO1600

Integration: 5.8 hours

Darks: ~20

Flats: ~40

Bias: ~100

Avg. Moon age: 1.57 days

Avg. Moon phase: 2.75%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details

Astrometry.net job: 3794720

RA center: 22h 56' 42"

DEC center: +62° 32' 56"

Pixel scale: 2.867 arcsec/pixel

Orientation: 52.795 degrees

Field radius: 1.199 degrees

Resolution: 2500x1677

Locations: Hohe Wand, Postl Wiese, Austria

Data source: Traveller


The Cave Nebula was my main object that wonderful night. It reminds me a little bit of the Boogie Man in Orion.😄



Robert Eder
License: None (All rights reserved)

Sky plot

Sky plot


SH2-155 - Cave Nebula, 


            Robert Eder

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