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Post Info TOPIC: Boulder Strewn Plain in Northern Utopia Planitia (ESP_016731_2360)


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RE: Boulder Strewn Plain in Northern Utopia Planitia (ESP_016731_2360)
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i do see what you mean, g, but if influx is correct, that's a big rock! lol.

the pillar shape is interesting.



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but the placement is what may be interesting, not the materials they are made of..... smile.gif

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So, 25 centimeter per pixel? I assume 'cm' means centimeter here. Using paint shop, I found most rocks to be in the size range of 20 to 100 pixels. The largest rock would appear to be 27 meters?

Whoa. That is 88 feet long. Using the same method I arrived at 17 feet wide for the rocks. About the same for height.

That comes out to 25,432 cubic feet of rock. for a single rock. Average weight of 166 lbs. per cubic foot of granite, that would make that rock weight, 4,221,712 pounds. Less on Mars, I guess, the mass would still be the same.

I think those are just natural rocks.



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influx wrote:

Ok, what is the scale in the image? What size are the rocks? What size is the shadow? What is the sun angle?



Unless it is difficult to descend under the laid out reference in the theme beginning?
Spoiler

OBSERVATION TOOLBOX
Acquisition date:20 February 2010 Local Mars time: 2:46 PM
Latitude (centered):55.5 ° Longitude (East):131.0 °
Range to target site:309.6 km (193.5 miles)Original image scale range:31.0 cm/pixel
(with 1 x 1 binning) so objects ~93 cm across are resolved
Map projected scale:25 cm/pixel and north is upMap projection:EQUIRECTANGULAR
Emission angle:0.3 ° Phase angle:47.2 °
Solar incidence angle:47 °, with the Sun about 43 ° above the horizon Solar longitude:54.1 °, Northern Spring
For non-map projected products:
North azimuth:97 ° Sub-solar azimuth:333.9 °
F O R   M A P   P R O J E C T E D   P R O D U C T S
North azimuth:270°Sub solar azimuth148.6°


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Ok, what is the scale in the image? What size are the rocks? What size is the shadow? What is the sun angle?

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Yes, Stonehenge would look out-of-place from the air too. Certainly, these look as if they are created by intelligence and the shadows tell us the height too, if we know the sun angle.

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ESP_016731_2360.jpg

HiRISE | Spotlight Images: 11 December 2009

Simply I search among chaos which for what order
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ESP_016731_23602.jpg
ESP_016731_23601.jpgESP_016731_2360.jpg

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