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APOD: The Milky Way over the Seven Strong... (2015 Jan 26)
Posted: Mon Jan 26, 2015 5:05 am
by APOD Robot
The Milky Way over the Seven Strong Men Rock Formations
Explanation: You may have heard of the
Seven Sisters in the sky, but have you heard about the Seven Strong Men on the ground? Located just west of the
Ural Mountains, the unusual
Manpupuner rock formations are one of the
Seven Wonders of Russia. How these ancient 40-meter high
pillars formed is yet unknown. The persistent photographer of
this featured image battled
rough terrain and uncooperative weather to capture these
rugged stone towers in winter at night, being finally successful in February of last year. Utilizing the camera's time delay feature, the photographer holds a flashlight in the foreground near one of the snow-covered
pillars. High above, millions of stars shine down, while the band of our
Milky Way Galaxy crosses diagonally down from the upper left.
[/b]
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 5:58 am
by John Severinghaus
Today's APOD about tall stone columns called Sever Strong Men.. suggests the tufa columns in Mono Lake California, formed under water when a spring of limestone loaded water comes from the ground into a very alkaline lake.
Was this area ever under an alkaline lake like the tufa?
jwseps@comcast.net
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 8:04 am
by Markus Schwarz
This APOD looks like a scene right out of a science fiction movie. Great image!
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 10:13 am
by David J Wilson
High above, millions of stars shine down ....
I don't think so.
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 11:41 am
by Ann
David J Wilson wrote: High above, millions of stars shine down ....
I don't think so.
Oh sure. You just can't see millions of them with your naked eye.
Ann
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 12:50 pm
by Boomer12k
Fascinating...and kudos to the intrepid photographer...
:---[===] *
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 12:56 pm
by Boomer12k
John Severinghaus wrote:Today's APOD about tall stone columns called Sever Strong Men.. suggests the tufa columns in Mono Lake California, formed under water when a spring of limestone loaded water comes from the ground into a very alkaline lake.
Was this area ever under an alkaline lake like the tufa?
jwseps@comcast.net
Wikipedia says they were formed by weathering conditions...ice and wind...
After watching the video under "Rough Terrain" in the description....it was not in or near a lake...
:---[===] *
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 4:26 pm
by geckzilla
Ann wrote:David J Wilson wrote: High above, millions of stars shine down ....
I don't think so.
Oh sure. You just can't see millions of them with your naked eye.
Ann
See them, yes. Distinguish each individual? No. Photons from each star must be arriving at one's retina in order to see the Milky Way. Same with Andromeda. I suppose we can see billions of stars in the same way we can see trillions of atoms in the objects around us. Can I see any atoms? Hmm.
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 6:48 pm
by nigel
John Severinghaus wrote:Today's APOD about tall stone columns called Sever Strong Men.. suggests the tufa columns in Mono Lake California, formed under water when a spring of limestone loaded water comes from the ground into a very alkaline lake.
Was this area ever under an alkaline lake like the tufa?
jwseps@comcast.net
No, apparently these are the product of differential erosion of schist (a metamorphic rock).
http://www.rgo.ru/en/photo/manpupuner-rock-formations
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 10:05 pm
by hoohaw
Oh, heck, I WILL complain, that big thing, whatever it is, is blocking my view of Cygnus!
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Mon Jan 26, 2015 11:05 pm
by Ron-Astro Pharmacist
nigel wrote:John Severinghaus wrote:Today's APOD about tall stone columns called Sever Strong Men.. suggests the tufa columns in Mono Lake California, formed under water when a spring of limestone loaded water comes from the ground into a very alkaline lake.
Was this area ever under an alkaline lake like the tufa?
jwseps@comcast.net
No, apparently these are the product of differential erosion of schist (a metamorphic rock).
http://www.rgo.ru/en/photo/manpupuner-rock-formations
Then these may be AKA : The Seven Schisters
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Tue Jan 27, 2015 3:11 am
by Ann
Ron-Astro Pharmacist wrote:
Then these may be AKA : The Seven Schisters
Ann
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 26)
Posted: Sat Nov 28, 2020 6:19 pm
by Fred the Cat
The journey to Manpupuner was fraught with difficulty. Being there had previously proven perilous and sparked mysteries yet
unraveled.
As with many APOD's - you have to admire the difficulties encountered to capture an image!
Re: APOD: The Milky Way over the Seven Strong... (2015 Jan 2
Posted: Sat Nov 28, 2020 6:42 pm
by neufer
Ron-Astro Pharmacist wrote: ↑Mon Jan 26, 2015 11:05 pm
nigel wrote:John Severinghaus wrote:
Today's APOD about tall stone columns called Sever Strong Men.. suggests the tufa columns in Mono Lake California, formed under water when a spring of limestone loaded water comes from the ground into a very alkaline lake.
Was this area ever under an alkaline lake like the tufa?
No, apparently these are the product of differential erosion of schist (a metamorphic rock).
http://www.rgo.ru/en/photo/manpupuner-rock-formations
Then these may be AKA : The Seven Schisters
https://en.wikipedia.org/wiki/Schist wrote:
<<During metamorphism, rocks which were originally sedimentary, igneous or metamorphic are converted into schists and gneisses. If the composition of the rocks was originally similar, they may be very difficult to distinguish from one another if the metamorphism has been great. A quartz-porphyry, for example, and a fine grained feldspathic sandstone, may both be converted into a grey or pink mica-schist. Usually, however, it is possible to distinguish between sedimentary and igneous schists and gneisses. If, for example, the whole district occupied by these rocks has traces of bedding, clastic structure, or unconformability, then it may be a sign that the original rock was sedimentary. In other cases intrusive junctions, chilled edges, contact alteration or porphyritic structure may prove that in its original condition a metamorphic gneiss was an igneous rock. The last appeal is often to the chemistry, for there are certain rock types which occur only as sediments, while others are found only among igneous masses, and however advanced the metamorphism may be, it rarely modifies the chemical composition of the mass very greatly. Such rocks as limestones, dolomites, quartzites, and aluminous shales have very definite chemical characteristics that distinguish them even when completely recrystallized.>>
And schisters are not gneiss.
