NGC6946 - The Fireworks Galaxy
Camera: Finger Lakes Instrumentation MicroLine ML8300 with FLI CFW-2-7 Filter Wheel
Mount: Paramount ME
Scope: Supernova Astrograph - 12.5" Zambuto - My Design
Colors: L:R:G:B
Exposure Time: 420 minutes L (42 x 600s): 80 minutes RGB (16 x 300s each) binned 2x2
Post-Production: MaxIm DL, CCDStack, PixInsight, and Photoshop CS5
From our vantage point in the Milky Way Galaxy, we see NGC6946 face-on. The big, beautiful spiral galaxy is located just 10 million light-years away, behind a veil of foreground dust and stars in the high and far-off constellation of Cepheus. From the core outward, the galaxy's colors change from the yellowish light of old stars in the center to young blue star clusters and reddish star forming regions along the loose, fragmented spiral arms. NGC 6946 is also bright in infrared light and rich in gas and dust, exhibiting a high star birth and death rate. In fact, since the early 20th century at least nine supernovae, the death explosions of massive stars, were discovered in NGC 6946. Nearly 40,000 light-years across, NGC 6946 is also known as the Fireworks Galaxy. (Description from APOD)