Venus on 2020-04-11 (JDJ)

Venus on 2020-04-11

Acquisition type: Lucky imaging

Continuing my imaging of Venus during the 2019-2020 evening apparition. These images were captured on the night of April 11, 2020 (April 12 in UTC). Venus was ~40% illuminated in this image. The seeing was on the poor side this night.

Imaged with a C8 Evo, ZWO ADC, Baader UV-IR Cut filters, and ZWO ASI224MC. Imaging train was configured to give me ~F/20. Image capture using Firecapture (see below for exposure settings). Stacking in AutoStakkert3 (best 20% of ~43000 frames captured over 180 seconds). Color balancing and Wavelet sharpening in Registax6. Derotated and combined three images in WinJUPOS.

Exposure settings for UV-IR Cut Filter images: Shutter=0.5ms, Gain=200 (33%), Histogram=48%, 240 FPS

FireCapture v2.5 Settings

------------------------------------

Observer=JDJ

Scope=Celestron Nextstar Evolution 8

Camera=ZWO ASI224MC

Filter=RGB

Profile=Venus

Diameter=29.33"

Magnitude=-4.47

FocalLength=4000mm (F/20)

Resolution=0.19"

Filename=2020-04-12-0016_9-J-RGB.avi

Date=2020_04_12

Start=001529.296

Mid=001659.290

End=001829.284

Start(UT)=001529.296

Mid(UT)=001659.290

End(UT)=001829.284

Duration=179.988s

Date_format=yyyy_MM_dd

Time_format=HHmmss

LT=UT -5h

Frames captured=43406

File type=AVI

Extended AVI mode=true

Compressed AVI=false

Binning=no

ROI=300x300

ROI(Offset)=0x0

FPS (avg.)=241

Shutter=0.500ms

Gain=200 (33%)

HighSpeed=on

AutoHisto=75 (off)

USBTraffic=100

WRed=52

HardwareBin=off

Gamma=50

Brightness=1

WBlue=95

AutoExposure=off

SoftwareGain=10 (off)

Histogramm(min)=0

Histogramm(max)=123

Histogramm=48%

Noise(avg.deviation)=n/a

Limit=180 Seconds

Sensor temperature=23.1 °C

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