Posted on May 19, 2022

APOD: 2022 May 19 - A Digital Lunar Eclipse

Maj William W. 'Bill' Price

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Good morning, Rallypoint, and welcome to the May 19th edition of Astronomy Picture of the Day (APOD): "A Digital Lunar Eclipse." Areas over central Florida were clear the night of May 15-16, allowing this composite image of the lunar eclipse to be captured for our viewing pleasure. In his notes on previous eclipse imagery, the astrophotographer indicates he used a 5-minute exposure rate to create the final product. I expect he following the same process here.

APOD: 2022 May 19 - A Digital Lunar Eclipse

Posted from apod.nasa.gov

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LTC Stephen F.

Posted 2 y ago

Bad Company -- Leeds 1974 -- Shooting Star

More of my photography taken at Leeds Town Hall in 1974 . I rediscovered some old 35mm slides collecting dust in a box in my attic. Spent some time carefull...

Thank you my space-exploration advocate friend Maj William W. 'Bill' Price for posting the May 19th Astronomy Picture of the Day (APOD); 'A Digital Lunar Eclipse.'

A Digital Lunar Eclipse
Image Credit & Copyright: Michael Cain
Explanation: Recorded on May 15/16 this sequence of exposures follows the Full Moon during a total lunar eclipse as it arcs above treetops in the clearing skies of central Florida. A frame taken every 5 minutes by a digital camera shows the progression of the eclipse over three hours. The bright lunar disk grows dark and red as it glides through planet Earth's shadow. In fact, counting the central frames in the sequence measures the roughly 90 minute duration of the total phase of this eclipse. Around 270 BC, the Greek astronomer Aristarchus also measured the duration of total lunar eclipses, but probably without the benefit of digital watches and cameras. Still, using geometry he devised a simple and impressively accurate way to calculate the Moon's distance in terms of the radius of planet Earth, from the eclipse duration.

Bad Company -- Leeds 1974 -- Shooting Star
https://www.youtube.com/watch?v=gIEQXrEHgC4

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LTC Stephen F.

2 y

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