The Great American Eclipse 2017 (Jay Ballauer)

Contains: Solar system body or event

The Great American Eclipse 2017

Link: https://www.allaboutastro.com/great-american-solar-eclipse-2017.html

The Great American Eclipse 2017

Link: https://www.allaboutastro.com/great-american-solar-eclipse-2017.html

Location: "Ground Zero" - Walmart Parking Lot, Hopkinsville, Kentucky

Seeing: n/a

Transparency: n/a

Temperature: Maybe 95 degrees F

Date: August 21, 2017

Scope/Mount: 3" Takahashi FSQ-85ED apo refractor

Camera: Nikon D810a DSLR

Mount: Takahashi NJP Temma 2

Filters: none

Guider: none

Exposure Info: This is a composite image, with nine individual sub exposures ranging from 1/3200 seconds to 2 seconds.

Subject Notes: I was treated to the most glorious visual experience EVER with this 2017 Total Solar Eclipse. My journey took me Hopkinsville, KY, which was essentially "ground-zero" for the eclipse. We were blessed with clear skies and friendly, excited neighbors for the 2 minutes and 40 seconds of totality.

This is the full solar corona, which is visible during totality. This image is a composite of several images ranging from 1/3200 seconds to 2 seconds. These are put together in Photoshop by uniting the images as a Smart Object and applying "mean" blending to the stack.

The moon details, which aren't visible with the eye during a total eclipse, become visible in a longer exposure due to reflected earth light (earthshine) that illuminates the moon's surface. The wispy details of the jets of particles that stream through the sun's coronosphere - collectively called the "corona" - are details achieved with additional processing. A tip for PixInsight users: use the Larson-Sekanina process on the stacked image.

Equipment used for this image was a Tak FSQ-85 (without solar filter) and Nikon D810A on a Tak NJP mount.

Special thanks to my friend Ross Lawrence for sharing the journey with me...and especially my wife, Helen, and kids for pardoning my absence from home.

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

Distribution of astrophotographers

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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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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.
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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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