Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 6939  ·  NGC 6946
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Fireworks Galaxy (NGC 6946) and Ghost Bush Cluster (NGC 6939), 



    
        

            Luca Marinelli
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Fireworks Galaxy (NGC 6946) and Ghost Bush Cluster (NGC 6939)

Getting plate-solving status, please wait...
Fireworks Galaxy (NGC 6946) and Ghost Bush Cluster (NGC 6939), 



    
        

            Luca Marinelli
Powered byPixInsight

Fireworks Galaxy (NGC 6946) and Ghost Bush Cluster (NGC 6939)

Imaging telescopes or lenses: Takahashi FSQ 106 EDX4

Imaging cameras: ZWO ASI 183MM Pro

Mounts: SkyWatcher EQ6-R Pro (EQMOD)

Guiding telescopes or lenses: Baader Planetarium Baader Vario 60mm F4.1

Guiding cameras: ZWO ASI 290 MM MINI

Software: Seqence Generator Pro  ·  Photoshop CC  ·  PIXINSIGHT 1.8  ·  Lightroom CC

Filters: Astrodon Tru-Balance Gen2 E-Series - R 36mm  ·  Astrodon Narrowband 3nm Ha  ·  Astrodon Tru-Balance Gen2 E-Series - B 36mm  ·  Astrodon Tru-Balance Gen2 E-Series - G 36mm  ·  Hutech IDAS LPS-P2 36mm Filter

Accessory: ZWO EFW 7 x 36mm  ·  Optec FocusLynx QuickSync FSQ Motor


Dates:July 9, 2018July 11, 2018July 18, 2018

Frames:
Astrodon Narrowband 3nm Ha: 25x360" (2h 30') (gain: 120.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - B 36mm: 60x90" (1h 30') (gain: 54.00) -20C bin 1x1
Astrodon Tru-Balance Gen2 E-Series - G 36mm: 60x90" (1h 30') bin 1x1
Astrodon Tru-Balance Gen2 E-Series - R 36mm: 40x180" (2h) bin 1x1
Hutech IDAS LPS-P2 36mm Filter: 225x60" (3h 45') (gain: 54.00) -20C bin 1x1

Integration: 11h 15'

Darks: 40

Flats: 30

Flat darks: 30

Bias: 100

Avg. Moon age: 19.69 days

Avg. Moon phase: 19.37%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.60


Astrometry.net job: 2163451

RA center: 20h 33' 20"

DEC center: +60° 21' 51"

Pixel scale: 0.932 arcsec/pixel

Orientation: -87.055 degrees

Field radius: 0.757 degrees


Resolution: 4780x3368

Locations: Home Observatory, Schenectady, New York, United States

Data source: Backyard

Description

The Fireworks Galaxy (NGC 6946) is a spiral galaxy 10 million light-years away, on the border between the constellations Cepheus and Cygnus. This beautiful face-on spiral spans nearly 40,000 light-years across, and is seen through a field of foreground stars from our Milky Way Galaxy.

NGC 6946 is undergoing a tremendous burst of star formation with no obvious cause. In many cases spirals light up when interacting with another galaxy, but NGC 6946 appears relatively isolated in space.

The data was acquired over four nights in LRGB and Ha to highlight star forming areas in the galaxy.

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