Venus on 2020-04-06 (JDJ)

Venus on 2020-04-06

Acquisition type: Lucky imaging

Continuing my imaging of Venus during the 2019-2020 evening apparition. These images were captured on the night of April 6, 2020 (April 7 in UTC). Venus was ~43% illuminated in this image. This has been a pretty nice week for backyard astronomy with fairly clear skies, ok seeing conditions, and warm temperatures. That's about as good as it gets around here in April, and a few spring evenings under the stars have been a welcome distraction from the tough times our world is facing these days.

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 ~27000 frames captured over 180 seconds). Color balancing and Wavelet sharpening in Registax6. Derotated and combined three images in WinJUPOS.

Exposure settings:

UV-IR Cut Filter images: Shutter=0.5ms, Gain=200 (33%), Histogram=51%, 150 FPS

FireCapture v2.5 Settings

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

Observer=JDJ

Scope=Celestron Nextstar Evolution 8

Camera=ZWO ASI224MC

Filter=RGB

Profile=Venus

Diameter=27.47"

Magnitude=-4.44

FocalLength=4050mm (F/20)

Resolution=0.19"

Filename=2020-04-07-0030_4-J-RGB.avi

Date=2020_04_07

Start=002857.540

Mid=003027.545

End=003157.550

Start(UT)=002857.540

Mid(UT)=003027.545

End(UT)=003157.550

Duration=180.010s

Date_format=yyyy_MM_dd

Time_format=HHmmss

LT=UT -5h

Frames captured=26993

File type=AVI

Extended AVI mode=true

Compressed AVI=false

Binning=no

ROI=300x300

ROI(Offset)=0x0

FPS (avg.)=149

Shutter=0.500ms

Gain=200 (33%)

HighSpeed=on

WRed=52

SoftwareGain=10 (off)

AutoHisto=75 (off)

USBTraffic=100

Gamma=50

Brightness=1

AutoExposure=off

HardwareBin=off

WBlue=95

Histogramm(min)=0

Histogramm(max)=132

Histogramm=51%

Noise(avg.deviation)=n/a

Limit=180 Seconds

Sensor temperature=24.9 °C

Focuser position=30028

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