APOD: Eclipse over the Acropolis (2011 Jun 25)

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APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by APOD Robot » Sat Jun 25, 2011 4:08 am

Image Eclipse over the Acropolis

Explanation: The total phase of the June 15 lunar eclipse lasted an impressive 100 minutes. Its entire duration is covered in this composite of a regular sequence of digital camera exposures, tracking the dark lunar disk as it arced above the Acropolis in Athens, Greece. In fact, around 270 BCE Greek astronomer Aristarchus also tracked the duration of lunar eclipses, though without the benefit of digital clocks 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. A more modern Greek astronomer, Elias Politis titled this eclipse duration study and the accompanying youtube timelapse video "Acropoclipse".

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orin stepanek
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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by orin stepanek » Sat Jun 25, 2011 11:02 am

Now that's a dark Moon! 8-)
Orin

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by moonstruck » Sat Jun 25, 2011 1:09 pm

Nice work Elias. And "Acropoclipse" what a clever play on words. Cool 8-)

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by neufer » Sat Jun 25, 2011 2:05 pm

moonstruck wrote:
Nice work Elias.

And "Acropoclipse" what a clever play on words.
But just try saying it three times fast :!:
Art Neuendorffer

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by Beyond » Sat Jun 25, 2011 5:05 pm

Acropoclipse,Acropoclipse,Acropoclipse :!:
To find the Truth, you must go Beyond.

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by Ann » Sat Jun 25, 2011 5:37 pm

Aprococlipse, Acropoplipse, Apropoplipse.... how'd I do?

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Chris Peterson
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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by Chris Peterson » Sat Jun 25, 2011 5:39 pm

moonstruck wrote:Nice work Elias. And "Acropoclipse" what a clever play on words. Cool 8-)
Not to be confused with acropocalypse- an APOD none of us want to see soon!
Chris

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by neufer » Sat Jun 25, 2011 6:25 pm

neufer wrote:
moonstruck wrote:
Nice work Elias.

And "Acropoclipse" what a clever play on words.
But just try saying it three times fast :!:
Beyond wrote:
Acropoclipse,Acropoclipse,Acropoclipse :!:
I didn't see your clipse moving :!:
Ann wrote:
Aprococlipse, Acropoplipse, Apropoplipse.... how'd I do?
About like the Swedish Chef.
Art Neuendorffer

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by moonstruck » Sat Jun 25, 2011 6:59 pm

You guys are so funny....and gals :-)

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Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by Beyond » Sat Jun 25, 2011 7:06 pm

neufer wrote: I didn't see your clipse moving :!:
So :?: Clipse-so, a variation of a famous dance where you move everything except your lips. It's only done when a picture of a fully e-clipse-d moon is shown.
To find the Truth, you must go Beyond.

dp

Re: APOD: Eclipse over the Acropolis (2011 Jun 25)

Post by dp » Sun Jun 26, 2011 3:03 am

Open the image in an image editor and fiddle with it a bit - there's a scorpion hiding in it behind the waxing moon.