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Astronomy Picture of the Day -- At the Limit of Diffraction
NASA ^ | May 07, 2015 | (see photo credit)

Posted on 05/07/2015 12:34:26 AM PDT by SunkenCiv

Explanation: Did you ever want to just look through the eyepiece of a large telescope in space? If you could, you would see a sharp view that was diffraction limited. Unaffected by atmospheric blurring that ultimately plagues earthbound observers, the angular resolution of your diffraction limited view would be determined only by the wavelength of light and diameter of the telescope lens or mirror; the larger the diameter, the sharper the image. Still, in this working earth-based snapshot a new active adaptive optics system (MagAO) is being used to cancel out the atmospheric blurring in a visual observation of famous double star system Alpha Centauri. Testing the system at the eyepiece of the 6.5 meter diameter Magellan Clay Telescope at Las Campanas Observatory, astronomer Laird Close is enjoying a historic diffraction limited view (inset) and the wide apparent separation of the close binary star system ... without traveling to low earth orbit.

May 07, 2015

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science
[Credit and Copyright: Yuri Beletsky (Las Campanas Observatory, Carnegie Institution)]

1 posted on 05/07/2015 12:34:26 AM PDT by SunkenCiv
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From another frequent contributor to APoD.


2 posted on 05/07/2015 12:34:55 AM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

I like it!


3 posted on 05/07/2015 1:00:07 AM PDT by patriotfury (May the fleas of a thousand camels occupy mo' ham mads tent!)
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To: SunkenCiv

Eat your heart out, Reverend Dawes.


4 posted on 05/07/2015 3:07:21 AM PDT by Lonesome in Massachussets (This is known as "bad luck". - Robert A. Heinlein)
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...

5 posted on 05/07/2015 4:12:18 AM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

de fraction be causen de earthquakes.


6 posted on 05/07/2015 4:20:45 AM PDT by 9thLife ("Life is a military endeavor..." -- Francis)
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To: SunkenCiv
Wow, that's amazing.... They can determine that the two stars are only 4 inches apart at this distance ;! 
7 posted on 05/07/2015 9:24:26 AM PDT by mikrofon (APOD Bump)
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To: mikrofon

Sure, but the stars are really, really tiny...


8 posted on 05/07/2015 12:19:12 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

Sorry, to disrupt.

But what is the very bright object in the western sky tonight? It’s brighter than any other *star* I’ve ever seen in the night sky.

Jupiter? Someone thought it might be the spacestation. I dunno.

I’m in central Connecticut......looking due west. Jes wondering


9 posted on 05/07/2015 7:22:29 PM PDT by Daffynition ("We Are Not Descended From Fearful Men")
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To: Daffynition

[ From Sky & Telescope ]

10 posted on 05/07/2015 7:35:00 PM PDT by mikrofon (APOD Bump)
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To: mikrofon

Thank you kindly. That’s what we thought....but I’ve never seen it so bright. It was stellar. Going to look again, tomorrow night.


11 posted on 05/07/2015 7:50:58 PM PDT by Daffynition ("We Are Not Descended From Fearful Men")
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To: mikrofon; Daffynition

It was bright enough tonight in Michigan with an unusually clear sky, could almost read by the light. :’)


12 posted on 05/07/2015 10:26:31 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

It was very pleasant. So often, we have overcast and celestial joys are forbidden.


13 posted on 05/07/2015 10:31:14 PM PDT by Daffynition ("We Are Not Descended From Fearful Men")
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