Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  M 101, M101, NGC 5457, NGC 5474, NGC 5477, NGC5447, NGC5449, NGC5450, NGC5451, NGC5453, NGC5455, NGC5461, NGC5462, NGC5471, NGC5474, NGC5477, PGC2448110, PGC2456753, PGC2464645, PGC2468609, PGC2469762, PGC2816075, PGC49919, Pinwheel galaxy
Getting plate-solving status, please wait...
M101 Wide-field, 



    
        

            Glenn Diekmann
Powered byPixInsight

M101 Wide-field

Technical card


Dates:June 21, 2018

Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 17x60" (gain: 76.00) -10C bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 17x60" (gain: 76.00) -10C bin 1x1
Astrodon Luminance E-Series Gen 2: 54x30" (gain: 76.00) -10C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 17x60" (gain: 76.00) -10C bin 1x1

Integration: 1.3 hours

Darks: ~50

Flats: ~25

Bias: ~200

Avg. Moon age: 8.46 days

Avg. Moon phase: 61.33%

Bortle Dark-Sky Scale: 7.00


Astrometry.net job: 3248708

RA center: 14h 3' 47"

DEC center: +54° 6' 22"

Pixel scale: 1.096 arcsec/pixel

Orientation: 90.494 degrees

Field radius: 0.777 degrees


Resolution: 4099x3042

Data source: Backyard

Description

I captured this target during a waxing gibbous moon while I was troubleshooting the guiding of my mount. I decided to process the data just to see how good I could make bad data look.

The signal to noise ratio on the individual subframes was terrible. The stacked data was only marginally better due to heavy LP and the 1.3 hour integration time. The biggest challenge was the incredible amount of noise. To achieve the image seen here, I had to beat the data mercilessly until it yielded an acceptable result. ;)

Comments

Author

Starship
Glenn Diekmann
License: None (All rights reserved)
1471
Like

Sky plot

Sky plot

Histogram

M101 Wide-field, 



    
        

            Glenn Diekmann