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Astronomy Picture of the Day - A Digital Lunar Eclipse
APOD.NASA.gov ^ | 19 May, 2022 | Image Credit & Copyright: Michael Cain

Posted on 05/19/2022 3:06:18 PM PDT by MtnClimber

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.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 05/19/2022 3:06:18 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 05/19/2022 3:06:33 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; America_Right; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌 🍔


3 posted on 05/19/2022 3:07:10 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

4 posted on 05/19/2022 3:09:44 PM PDT by DannyTN
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To: DannyTN

I was thinking it was a big twirling baton from a marching band. It would have to be a big ‘ol bull trans womxn to throw that thing up like that. I shudder to imagine it, but I thought you could probably sketch a picture of it.


5 posted on 05/19/2022 3:17:17 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: DannyTN

My first thought, also.


6 posted on 05/19/2022 3:25:34 PM PDT by reg45 (Barack 0bama: Gone but not forgiven.)
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To: MtnClimber
I was thinking a fire eater baton. Oh and shucks, I couldn't find a big burly woman fire eater. We'll have to go with these.

This one looks like she dropped one in a most attractive location.

I just can't believe I couldn't find a big burly one for you.

7 posted on 05/19/2022 3:27:04 PM PDT by DannyTN
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To: MtnClimber

What was this thread about... an eclispe?

lol it’s a great picture. The astrnomy one is not bad either.


8 posted on 05/19/2022 3:48:29 PM PDT by DannyTN
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To: DannyTN

I think fire eating women have affected my spelling.


9 posted on 05/19/2022 3:50:29 PM PDT by DannyTN
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To: DannyTN

Danny, the effort you put into trying to find the best of the big-and-burly for all of us is humbling. Heh. :-)


10 posted on 05/19/2022 5:56:06 PM PDT by AFB-XYZ (Stand up, or bend over)
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