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Astronomy Picture of the Day -- The Milky Way Over Monument Valley
NASA ^ | November 01, 2015 | (see photo credit)

Posted on 10/31/2015 9:14:38 PM PDT by SunkenCiv

Explanation: You don't have to be at Monument Valley to see the Milky Way arch across the sky like this -- but it helps. Only at Monument Valley USA would you see a picturesque foreground that includes these iconic rock peaks called buttes. Buttes are composed of hard rock left behind after water has eroded away the surrounding soft rock. In the featured image taken in 2012, the closest butte on the left and the butte to its right are known as the Mittens, while Merrick Butte can be seen just further to the right. High overhead stretches a band of diffuse light that is the central disk of our spiral Milky Way Galaxy. The band of the Milky Way can be spotted by almost anyone on almost any clear night when far enough from a city and surrounding bright lights.

November 01, 2015

(Excerpt) Read more at 129.164.179.22 ...


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; milkyway; milkywaygalaxy; monumentvalley; science
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[Credit and Copyright: Wally Pacholka (AstroPics.com, TWAN)]

1 posted on 10/31/2015 9:14:39 PM PDT by SunkenCiv
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To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; steelyourfaith; Mmogamer; dayglored; ...
The Big One

2 posted on 10/31/2015 9:15:40 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
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To: SunkenCiv

That’s an amazing shot. Can you really see the whole galaxy with the naked eye? Is it really curved?


3 posted on 10/31/2015 9:24:01 PM PDT by chopperman
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To: chopperman

Shots,like,that most often are composites. I was looking for an explanation, but didn’t see one.


4 posted on 10/31/2015 9:25:53 PM PDT by ProtectOurFreedom (For those who understand, no explanation is needed. For those who do not, no explanation is possible)
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To: chopperman

From the photographer’s website, astropics.com:

Pacholka said he employs simple techniques and does nothing extraordinary to get his shots. He uses a standard 50mm lens mounted on a tripod, and points a small flashlight on nearby desirable rocks and other land features he wants to stand out in the photo.

He allowed that his digital camera has a light-gathering power that is in some instances more than 50,000 times greater than a typical daylight camera setting. Pacholka runs his exposures anywhere from a few seconds to a minute. But he doesn’t consider himself a guru.

“This is something the average person could do, absolutely,” he said.


5 posted on 10/31/2015 9:31:56 PM PDT by ProtectOurFreedom (For those who understand, no explanation is needed. For those who do not, no explanation is possible)
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To: chopperman

Not in many inhabited places, not any more. :’o I can see it here.


6 posted on 10/31/2015 10:13:28 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
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To: SunkenCiv
Beautiful :)

Can't describe it any other way.

7 posted on 10/31/2015 10:32:38 PM PDT by Mr_Moonlight
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To: SunkenCiv

And amazingly it all exploded into being from nothingness. Better than pulling a rabbit out of a hat, if you ask me.


8 posted on 10/31/2015 10:45:43 PM PDT by heights
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To: chopperman; ProtectOurFreedom
That is a spiral arm of our own galaxy.

See the Orion arm or spur? That's area would be home to our solar system.

9 posted on 10/31/2015 11:18:36 PM PDT by dragnet2 (Diversion and evasion are tools of deceit)
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To: chopperman
Can you really see the whole galaxy with the naked eye? Is it really curved?

The Milky Way is a flat disc like the solar system. Yet the Sun and the planets all trace out an arch as they cross the sky. Both actually wrap around the planet as a complete ring structure.

Both the plane of the SS and the MW are fixed against the background stars and constellations. They run at a fixed 60-deg angle to each other. The plane of the SS is called the ecliptic plane. The plane of the MW is called the galactic plane. Our SS is roughly 3/4s of the way out from the center of the galaxy. This is why the angle of the galactic plane appears to change its orientation as the Earth spins during the course of the night.

I found this excellent graphic which illustrates the situation as we perceive it...

Image credit: National Astronomical Observatory ROZHEN, via http://sob.nao-rozhen.org/content/doomsday-21-december-2012-end-world-or-day-misunderstanding-0.

10 posted on 11/01/2015 12:31:49 AM PDT by ETL (Ted Cruz 2016!! -- For a better and safer America)
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To: chopperman

Looks like the panarama feature In the camera caused the bend in the camera. Weird though


11 posted on 11/01/2015 2:32:20 AM PST by Vaquero ( Don't pick a fight with an old guy. If he is too old to fight, he'll just kill you.)
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To: chopperman

It curves because it rises and sets by the time of night. If it didn’t curve in a Panorama shot, it would be a circle in the actual sky. One edge to the other in the photo is the beginning to the end of the time of night.


12 posted on 11/01/2015 3:07:46 AM PST by Talisker (One who commands, must obey.)
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To: Vaquero; chopperman
Correct. Imagine grabbing the image below by the left edge and right edge and pulling them toward you such that the left edge is to your immediate left and the right edge your immediate right (180 deg of a circle around the horizon).

November 01, 2015

13 posted on 11/01/2015 3:45:13 AM PST by ETL (Ted Cruz 2016!! -- For a better and safer America)
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To: Vaquero; chopperman
Below:
The light blue band represents the galactic plane (the band of the Milky Way). The dark lines represent planets within the plane of the solar system (the ecliptic plane). Note that they intersect at two points 180 deg apart. Think of the horizon as a full 360 deg circle around you.


14 posted on 11/01/2015 3:49:44 AM PST by ETL (Ted Cruz 2016!! -- For a better and safer America)
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To: ProtectOurFreedom

If he is leaving the exposure for more than a few seconds, it’s gonna get streaky. The earth is always moving. Star tails start at about ten seconds.

You CAN get good star shots using a high ISO and a really fast lens.


15 posted on 11/01/2015 4:14:45 AM PST by Vermont Lt
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To: chopperman
As the Earth spins on its tilted axis over the course of 24 hrs the orientation of the galactic plane, as we perceive it, changes dramatically. ie, it isn't always emerging out of the east and sinking into the west as shown in the image (below).

Again, the galactic plane is fixed in relation to the constellations. Sagittarius (the bright region on the right in the image) is one such place where the galactic plane and the ecliptic plane (plane of the solar system) crosses. There are 12 constellations along the complete ring of the ecliptic plane. They are the 12 constellations used in the horoscope. Sagittarius happens to be in the direction of the galactic center, where, 26,000 light years away, a super-massive black hole resides.

November 01, 2015

16 posted on 11/01/2015 4:26:32 AM PST by ETL (Ted Cruz 2016!! -- For a better and safer America)
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To: ProtectOurFreedom

Beautiful shot. Looks like he light painted the foreground with a flashlight.


17 posted on 11/01/2015 4:29:28 AM PST by TADSLOS (A Ted Cruz Happy Warrior! GO TED!)
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To: chopperman; SunkenCiv
Image and video hosting by TinyPic

Image and video hosting by TinyPic

I drew the orange lime to depict the ecliptic plane (plane of the solar system, where the 12 zodiac/horoscope constellations reside). The center of our Milky Way Galaxy lies within Sag, the bright region. I'm sure I misspelled some or all of them.

18 posted on 11/01/2015 5:27:29 AM PST by ETL (Ted Cruz 2016!! -- For a better and safer America)
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To: TADSLOS

That’s exactly what he says he does.


19 posted on 11/01/2015 6:06:31 AM PST by ProtectOurFreedom (For those who understand, no explanation is needed. For those who do not, no explanation is possible)
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To: chopperman

Btw, the answer to your question about seeing the entire galaxy from earth using the unaided eye is, no we can’t. Just as we cannot see the entire earth while standing on earth. But it sure would be a great view if we could.


20 posted on 11/01/2015 9:33:40 AM PST by dragnet2 (Diversion and evasion are tools of deceit)
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