An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon (David Duarte)

Contains: Solar system body or event

An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon

Acquisition type: Lucky imaging

An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon

Acquisition type: Lucky imaging

This is a mosaic of 5 panels of the Waning Gibbous Moon captured only three days after the greatest full Moon at perigee (supermoon) of 2020. The Moon was still very near to the Earth, with a big apparent size, and its Declination positioned it very high in the sky for my Latitude, lowering the atmospheric turbulence.

All those conditions made it possible to achieve a very fine resolution. Each panel had the maximum resolution of the ASI1600 camera (of about 4600x3500 px), so the whole image, comprising the 5 panels, provides a superb total resolution.

From a fully lit western limb to a very discernible topography on a broad eastern strip, this image exhibits in great resolution the major and minor surface features of the Moon, including Oceanus Procellarum, the major Copernicus, Kepler and Tycho Craters with their extensive ray systems, a sequence of the lunar maria, from west to east, with a decreasing solar altitude: Mare Imbrium, Mare Serenitatis, Mare Tranquilitatis and, partially, Mare Fecunditatis as well as only the the western edge of Mare Crisium, with the very top of the Picard Crater under sunlight. The Terminator zone goes all the way from South to North Pole, providing beautiful topography contrast all along it, exposing craters’ depths and several rimae, dorsa and sharp spikes of shadows cast by mountains and ridges.

Although the LRGB filter set is indicated in the gear area, only the G filter was used for each image.

Please see the mosaic at full resolution and pan your sight over the different lunar regions! Have a nice spacewalk!

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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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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An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon

An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon

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An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon

An 80 Megapixels Lunar Mosaic - A Super High Definition Waning Gibbous Moon

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