Albedo spots on Ganymede

Contains: Solar system body or event

Albedo spots on Ganymede

This is the second photo I have of Ganymede. The first time was just for fun and the results surprised me.

So this I was a little more careful at the time of capture. I decided to capture a greater number of frames (about 9000) because I realized that objects of this size must have a very high number of them to work.

Yet after the initial PROCESSING appeared that spot near the center and I thought to myself, "Where did I do the shit?"

Was almost believer that could only be a processing error, so redid everything again two or three times and in all such spot was manifested.

I decided to open the WinJupos and take a close on Ganymede, what was my surprise when there was such a spot !!!!

Guy remembered the post in the group "Solar System" where my colleagues and Ilídio Afonso Jr Martini had been discussing about resolution and oversamppling.

So I can say that this Ganymede with its 1,565 "arc would be an excellent example of extrapolating limits as with a seeing 3/5 would not resolve anything smaller than 2" or 3 "of arc.

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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.
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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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Albedo spots on Ganymede

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Albedo spots on Ganymede

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