June 16th was a great night for planetary observation and imaging in the DC area. Decent seeing and pleasant temperatures lasted throughout the night. Jupiter, Saturn, then Mars formed a nicely spaced parade across the southern sky over the course six or so hours. Jupiter was particularly showy this night with the GRS prominent, a transit of Io (Io's shadow visible on Jupiter's disk at the time of this image; Io to the right of Jupiter), and Callisto just visible to the top right of Jupiter's disk.

Imaged with a C8 Evo, custom Siebert 2x barlow, ZWO ADC, Baader Moon&Skyglow filter, and ZWO ASI224MC. Image capture using Firecapture. Stacking in AutoStakkert3. Deconvolved in Fitswork4. Color balancing and Wavelet sharpening in Registax6. Lastly, processed a single frame in WinJupos10.9 to generate the final image (had a trio of frames, but the other two weren't as good and the combined result was worse than the best of the three). The image is a stack of the best 50% of ~27,00 frames captured over 180 seconds.

FireCapture v2.5 Settings

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Camera=ZWO ASI224MC

Filter=RGB

Profile=Jupiter

Diameter=42.89"

Magnitude=-2.39

CMI=286.7° CMII=312.0° CMIII=186.6° (during mid of capture)

FocalLength=3900mm (F/19)

Resolution=0.20"

Filename=2018-06-16-0321_7-J-RGB.avi

Date=2018_06_16

Start=032016.206

Mid=032146.210

End=032316.214

Start(UT)=032016.206

Mid(UT)=032146.210

End(UT)=032316.214

Duration=180.008s

Date_format=yyyy_MM_dd

Time_format=HHmmss

LT=UT -5h

Frames captured=26991

File type=AVI

Extended AVI mode=true

Compressed AVI=false

Binning=no

ROI=420x362

ROI(Offset)=0x0

FPS (avg.)=149

Shutter=6.500ms

Gain=320 (53%)

Brightness=1

HighSpeed=on

SoftwareGain=10 (off)

AutoExposure=off

USBTraffic=100

HardwareBin=off

Gamma=50

WRed=52

WBlue=95

AutoHisto=75 (off)

Histogramm(min)=0

Histogramm(max)=161

Histogramm=63%

Noise(avg.deviation)=n/a

Limit=180 Seconds

Sensor temperature=27.9 °C