The Solar Maximum Corona (Andrea Girones)

Contains: Solar system body or event

The Solar Maximum Corona

The Solar Maximum Corona – A mysterious solar veil
The corona at every solar eclipse is different, and also depends on where we are in the solar cycle. Since we are approaching solar maximum in 2024, the corona extends all around the Sun. If you look at corona images from a solar eclipse that occurred at solar minimum such as in 2017, the coronal activity is not evenly distributed around the disk. There were also many attempts to “predict” the solar corona and they came pretty close. Swipe to see the prediction

People often ask “what is the corona?” The Corona is the veil of wispy solar plasma that surrounds the sun in the highest ( and hottest) part of its atmosphere. It is faint and therefore extremely difficult to see and study without that handy moon blocking the bright solar disk.

If you were sitting around a warm campfire, the further away you sat from the fire, the colder you would feel. Not so with the sun. In fact that outer veil is 10x hotter than the sun’s surface, also called the photosphere. Scientists do not understand why the Solar Corona is so incredibly hot compared the solar surface. It is one of the many secrets the sun keeps from us.

This is an HDR blend of several different length exposure to tease out the faint bit of the wispy veil. Shot with a 62mm telescope and Nickon D750 on April 8 2024

Blended as a mean stack in Photoshop.
The Earthshine moon is visible in the very brightest exposures and was processed using Adam Block's Earthshine technique.

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	Distinct awarded users	Total awarded images
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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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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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