Clic here for 60% size 2436x2438 (873 kB)
NGC 6946 is a spiral galaxy located approximately 23 million light years from Earth, on the border between the constellations Cepheus and Cygnus.
The galaxy also is known as the Fireworks Galaxy, Arp 29, and Caldwell 12.
16" cassegrain in corrected secondary focus at f/10
About this Image
NGC 6946 is highly obscured by interstellar matter of the Milky Way galaxy, as it is quite close to the galactic plane, a lot of our milkyway's stars are shining in the foreground as well.
North is to the top.
Find a close-up on the galaxy in 35/80% size below.
Technical Details
Optics
Mount
ASA DDM-85XL
Camera
SBIG STX16803 at -25C, STX filter wheel
Filters
Baader 65x65mm LRGB
Date
July 2011
Location
Wildon/Austria
Sky Conditions
mag 5.5 sky, raw FWHM 1.6-2.8", temperature 18-25 C
Exposure
L:R:G:B = 400:100:100:100 minutes (20-minute sub-exposures)
Programs used
Autoslew
Maxim DL 5
CCDStack
Photoshop CS5
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