Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Fireworks Galaxy  ·  NGC 6939  ·  NGC 6946
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Fireworks-Galaxy NGC6946, NGC6939 (Melotte 231), 



    
        

            Rolf Dietrich
Fireworks-Galaxy NGC6946, NGC6939 (Melotte 231)
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Fireworks-Galaxy NGC6946, NGC6939 (Melotte 231)

Technical card

Imaging telescopes or lenses: GSO RC8" Carbon  ·  GSO RC6"

Imaging cameras: ASI1600mm Pro  ·  ATIK 16200M

Mounts: SkyWatcher HEQ5 GOTO  ·  EQ6-R

Guiding telescopes or lenses: GSO RC8" Carbon  ·  GSO RC6"

Guiding cameras: zwo ASI 290mini  ·  ZWO ASI120Mini

Focal reducers: Astro-Physics CCDT67  ·  TS CCD47

Software: Fitswork  ·  Sequence Generator Pro  ·  PHD2  ·  ADOBE PHOTOSHOP CS5.5  ·  DeepSkyStacker


Dates:May 18, 2020

Frames:RGB: 66x300" bin 1x1

Integration: 5.5 hours

Avg. Moon age: 25.66 days

Avg. Moon phase: 15.98%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 20.50


Basic astrometry details

Astrometry.net job: 3580681

RA center: 20h 33' 2"

DEC center: +60° 22' 58"

Pixel scale: 1.071 arcsec/pixel

Orientation: 359.091 degrees

Field radius: 0.830 degrees


Resolution: 4384x3456

Locations: My Garden, Heidenheim, Germany

Data source: Backyard

Description

The face-on Fireworks-Galaxy is 25Mly, but NGC6939 only 3,9ly away.
The open cluster NGC6939 is about 2,2 billions years old.

Comments

Sky plot

Sky plot

Histogram

Fireworks-Galaxy NGC6946, NGC6939 (Melotte 231), 



    
        

            Rolf Dietrich