Venus on 2021-12-20 (JDJ)

Contains: Solar system body or event

Venus on 2021-12-20

Acquisition type: Lucky imaging

Reaching the endgame for imaging of Venus during the 2021 evening apparition. These images were captured on the night of December 20, 2021. Venus was 53.5 arcsec in diameter and ~11% illuminated in this image. Taken around sunset under average seeing conditions. This is likely my last Venus for this apparition with Venus now being nearly too low to see from my location at sunset.

Imaged with a C8 Evo, ZWO ADC, Baader UV-IR Cut filter, and ZWO ASI224MC. Imaging train was configured to give ~F/20. Image capture using Firecapture (see below for exposure settings). Stacking in AutoStakkert3 (best 5% of ~6000 frames captured over 180 seconds). Color balancing and Wavelet sharpening in Registax6. Derotated one images in WinJUPOS.

Exposure settings for UV-IR Cut Filter images: Shutter=0.6ms, Gain=250, Histogram=52%, ~35 FPS (capturing a much larger FOV now with corresponding lower FPS)

Suburban Astrophotography
Solar System Imaging
Cloudy Nights
Schmidt-Cassegrain Telescope (SCT) Imagers

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Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

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Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Venus on 2021-12-20

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Venus on 2021-12-20

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