Saturn 16 Apr 2022 - 4 minute Stack (Seb Lukas)

Contains: Solar system body or event

Saturn 16 Apr 2022 - 4 minute Stack

Acquisition type: Lucky imaging

Saturn 16 Apr 2022 - 4 minute Stack

Acquisition type: Lucky imaging

Saturn on Easter Sunday 17 Apr 2022 AEST.

Imaged planetary trifecta this morning: Mars, Saturn and Venus. The weather finally cooperated with a clear moonlit sky greeting me at 5am.

Following Mars runs I have removed the ADC and replaced Meade 2x Barlow with its TeleVue equivalent, decreasing focal ratio to F20. Unfortunately seeing started to go downhill from here despite Saturn's higher elevation. Only one stack proved to be usable and I had to apply strong DNR in place of WinJUPOS derotation. This single 4 minute stack combines approximately 1,700 frames and is centered on 5:55 am AEST.

With the brightening sky and not much data available I found colour balancing quite challenging in this image (it is nearly impossible to remove the ever-present blue tinge). Despite all this it is nice to capture a more oblique aspect of the rings as Saturn progresses in its orbit around the the Sun. Looking forward to this year's opposition in August.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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
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Saturn 16 Apr 2022 - 4 minute Stack

Saturn 16 Apr 2022 - 4 minute Stack

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Saturn 16 Apr 2022 - 4 minute Stack

Saturn 16 Apr 2022 - 4 minute Stack

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