10-29-2021 Animation of Jovian Moons (Steve Lantz)

Contains: Solar system body or event

10-29-2021 Animation of Jovian Moons

Acquisition type: Lucky imaging

10-29-2021 Animation of Jovian Moons

Acquisition type: Lucky imaging

I noticed in the image data for the Jupiter image I just posted for 10-29-2021 that two of the Galilean moons were captured fairly well and in many frames the disks were visible, although in others they were distorted by atmospherics. What surprised me is that in the first images, only Io was visible. But starting at about 18:30 MDT, Ganymede appeared on the other side of the planet, The sun's rays were coming from the right, so I wondered if Ganymede had emerged from Jupiter's shadow. So I checked using Stellarium and, sure enough, Ganymede emerges right at this time. To see all of this happening, I prepared a GIF animation from the individual images compiled from the 41 15-s videos I took. The animation shows Jupiter rotating as the moons display their orbital motion.

The equipment and other pertinent data for the video images are available in the final image of Jupiter I posted for this observation run.

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	Distinct awarded users	Total awarded images
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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
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Star trails
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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
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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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PixInsight job	n/a
PixInsight queue size	n/a
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10-29-2021 Animation of Jovian Moons

10-29-2021 Animation of Jovian Moons

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10-29-2021 Animation of Jovian Moons

10-29-2021 Animation of Jovian Moons

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