Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7419  ·  NGC7419  ·  PK110+01.1  ·  Sh2-154  ·  Sh2-155  ·  VdB155
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The Beautiful Objects in the Kingdom of Athiopia, 



    
        

            Gary Lopez
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The Beautiful Objects in the Kingdom of Athiopia

Imaging telescopes or lenses: William Optics GT71 71mm f/5.9 Apo Refractor

Imaging cameras: ZWO ASI1600MM Cooled PRO

Mounts: Orion Atlas EQ-G

Guiding telescopes or lenses: Orion 50mm Guide Scope with helical focusing

Guiding cameras: Lacerta M-Gen II Autoguider

Focal reducers: William Optics 0.8X Field Flattener

Software: Adobe Lightroom CC  ·  Main Sequence Software Sequence Generator Pro, v3.0  ·  Pleaides PixInsight Core 1.8

Filters: Astrodon R Gen 2 E-series 31mm  ·  Astrodon G Gen 2 E-series 31mm  ·  Astrodon OIII 3nm-31mm  ·  Astrodon SII 3nm-31mm  ·  Astrodon Ha 3nm-31mm


Dates:Oct. 15, 2020Oct. 16, 2020Oct. 17, 2020Oct. 21, 2020

Frames:
Astrodon B Gen 2 E-series 31mm: 30x60" (gain: 139.00) -15C bin 1x1
Astrodon G Gen 2 E-series 31mm: 30x60" (gain: 139.00) -15C bin 1x1
Astrodon Ha 3nm-31mm: 233x180" (gain: 139.00) -15C bin 1x1
Astrodon OIII 3nm-31mm: 110x180" (gain: 139.00) -15C bin 1x1
Astrodon R Gen 2 E-series 31mm: 30x60" (gain: 139.00) -15C bin 1x1
Astrodon SII 3nm-31mm: 87x180" (gain: 139.00) -15C bin 1x1

Integration: 23.0 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 15.80 days

Avg. Moon phase: 8.00%

Bortle Dark-Sky Scale: 4.00


Astrometry.net job: 3964694

RA center: 22h 54' 21"

DEC center: +61° 55' 16"

Pixel scale: 2.302 arcsec/pixel

Orientation: -96.167 degrees

Field radius: 1.810 degrees


Resolution: 4514x3413

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard

Description

There is a nice collection of objects in this region of the constellation Cepheus. On the lower left of this image is The Cave Nebula (Sh2-155, Caldwell 9) with a bright rim of glowing gases ionized by the hot blue-white stars in the vicinity. The crescent-shaped cave structure is 10 light years across and a fan of atomic oxygen stretches out from the ridge, perforated by channels and Bok globules. At the left center of the image is a blue reflection nebula, vdB 155, and the diffuse red object in the upper right is the emission nebula, Sh2-154. Finally, the kingdom is graced by a beautiful golden, pear-shaped open star cluster in the right center cataloged at NGC7419.

The data for this image were collected in a week-long stretch of clear night skies in October. The data quality was excellent and the light subs used in this image had HFR ranging from 1.5-1.9. The processing approach was an SHO build with Hubble standard color assignments, an Ha luminance mask, and RGB star color.

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    The Beautiful Objects in the Kingdom of Athiopia, 



    
        

            Gary Lopez
    Original
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    The Beautiful Objects in the Kingdom of Athiopia, 



    
        

            Gary Lopez
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Description: Minor cleanup

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The Beautiful Objects in the Kingdom of Athiopia, 



    
        

            Gary Lopez