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Astronomy Picture of the Day -- Moonrise Through Mauna Kea's Shadow
NASA ^ | May 03, 2015 | (see photo credit)

Posted on 05/03/2015 4:12:45 PM PDT by SunkenCiv

Explanation: How can the Moon rise through a mountain? It cannot -- what was photographed here is a moonrise through the shadow of a large volcano. The volcano is Mauna Kea, Hawai'i, USA, a frequent spot for spectacular photographs since it is arguably the premier observing location on planet Earth. The Sun has just set in the opposite direction, behind the camera. Additionally, the Moon has just passed full phase -- were it precisely at full phase it would rise, possibly eclipsed, at the very peak of the shadow. The Moon is actually rising in the triangular shadow cone of the volcano, a corridor of darkness that tapers off in the distance like converging train tracks. The Moon is too large and too far away to be affected by the shadow of the volcano. Refraction of moonlight through the Earth's atmosphere makes the Moon appear slightly oval. Cinder cones from old volcanic eruptions are visible in the foreground.

May 03, 2015

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; maunakea; science
[Credit and Copyright: Michael Connelley (U. Hawaii)]

1 posted on 05/03/2015 4:12:45 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 05/03/2015 4:13:36 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

Finally, an APOD of a place wherre I have been!

Mauna Kea...NOT the Moon! LOL!


3 posted on 05/03/2015 4:14:15 PM PDT by left that other site (You shall know the Truth, and The Truth Shall Set You Free.)
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To: SunkenCiv

4 posted on 05/03/2015 4:15:05 PM PDT by 9thLife ("Life is a military endeavor..." -- Francis)
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To: SunkenCiv

Mr. Mercat and I went up to watch the sunrise over Haleakala Crater in Maui. We didn’t go to the tippy top. Our guidebook took us to a turn off just before the summit and it was incredible. Peak experience, pun intended. Winds must have been gusting towards 50 miles an hour, edge of a cliff, freezing cold. We were the only ones there. No diesel busses.


5 posted on 05/03/2015 4:41:55 PM PDT by Mercat (Release the HildeKraken)
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To: SunkenCiv
Refraction of moonlight through the Earth's atmosphere makes the Moon appear slightly oval.

Sounds like something from "Men In Black." :)

6 posted on 05/03/2015 4:45:04 PM PDT by upchuck (The current Federal Governent is what the Founding Fathers tried to prevent. WAKE UP!! Amendment V.)
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To: upchuck

:’)


7 posted on 05/03/2015 5:05:20 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

I just watched Moonrise over Skidaway Island here in Georgia from the net covered cockpit of my 36ft sailing yacht.

It was quite beautiful, even for the Moon (which is WAY to bright for astronomy) and the light reflecting of the water in the marsh was also nice.


8 posted on 05/03/2015 6:12:42 PM PDT by Conan the Librarian (The Best in Life is to crush my enemies, see them driven before me, and the Dewey Decimal System)
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To: Conan the Librarian

Sounds perfect.


9 posted on 05/03/2015 6:14:00 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: Mercat; left that other site; 9thLife

:’) Not much astronomy in this pic, but it’s a hit!


10 posted on 05/03/2015 6:46:45 PM PDT by SunkenCiv (What do we want? REGIME CHANGE! When do we want it? NOW!)
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To: SunkenCiv

Cool! Mrs. F & I were just there not long ago. Strange to see snow in HI!


11 posted on 05/03/2015 8:26:12 PM PDT by martin_fierro (< |:)~)
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