A Celestial Pairing: Galaxy NGC 6946 and Star Cluster NGC 6939

            Open star cluster NGC 6939 (bottom center) is visually located close to the star Eta Cephei inside our galaxy, but in reality it lies more than 4,000 light-years away from us (this value is a bit uncertain). Its apparent magnitude is 7.8, meaning it can only be seen with binoculars or with a telescope.
By pure coincidence, less than one degree away lies the face-on galaxy NGC 6946 (center of image), an entirely separate galactic system outside our own Milky Way, at an estimated distance of about 25 million light-years (according to recent measurements). Because many supernova explosions were recorded at the last 100 years in this galaxy, it got the nickname of "Fireworks galaxy". 
Both objects were discovered by William Herschel in 1798. 
Thanks to everyone and clear skies!
Details:
Telescope: Orion EON 80ED
Camera: Canon EOS 20Da 
Mount: Vixen Sphinx 
Filter: Astronomik CLS
Guiding: Skywatcher 80/400 refractor - SkyWatcher SynGuider
Light frames: 12 x 5 mins (total: 60 mins), ISO 3200, Custom WB, calibrated with darks
Date: 25 October 2019 
Processing: DSS 4.2.3, Adobe Photoshop 2020 with Astronomy Tools Actions set (spikes added to the brightest stars)

   

Taken on: October 25, 2019

Tags:

2019

Astrophotography

DSS

Deep_Sky

EOS_20Da

Galaxy

NGC_6939

NGC_6946

Open_Cluster

Sphinx

Fireworks

Stars « less

Sets appears in: • Deep Sky Astrophotography

Groups appears in: • Astrophotography - Astronomy - Astrophysics • Canon DSLR User Group more » • Astronomy • Canon 20D • - I LOVE NATURE - • Deep Space Astrophotography • astrometry • astrophotoinsight • Deep Sky Stacker • DSLR Astrophotography • The Art of Astrophotography • Flickrology • Sky Magic « less

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