APOD: At the West Wall of Aristarchus Crater (2012 Feb 17)

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Expand view Topic review: APOD: At the West Wall of Aristarchus Crater (2012 Feb 17)

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Robin Vann » Sun Feb 26, 2012 4:44 am

I wonder whether this goes some way towards explaining the frequent reports of 'transient lunar phenomena' in Aristarchus. These have often taken the form of bright white flashes.

Looking at the photograph, there is at least one quite large area of brilliant white excavated material which, given a certain solar colongitude and libration, might cause a flash to be observed by a telescopic observer.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Chris Peterson » Tue Feb 21, 2012 5:45 am

BruceBWilliams wrote:iamlucky13 - You seem to forget. The people did not put him in jail/house arrest. It was the church authorities.
Do not blame the masses for the failures of those in control. At this time in mankinds evolution education in the sciences could only come about with the approval of those in power. It is a far cry from today's world where everyone in this country can get a minimum education, including the sciences.
What country do you live in? In my country (the U.S.) an increasingly large percentage of the population is grossly undereducated in the sciences, and fewer and fewer children are receiving what could even be called a minimum education. A significant percentage don't know that the Earth travels around the Sun. And of course, "those in power" deprecate science whenever it suits their politics. Not much is different today in the U.S. than in 17th century Italy.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by BruceBWilliams » Tue Feb 21, 2012 2:48 am

iamlucky13 - You seem to forget. The people did not put him in jail/house arrest. It was the church authorities.
Do not blame the masses for the failures of those in control. At this time in mankinds evolution education in the sciences could only come about with the approval of those in power. It is a far cry from today's world where everyone in this country can get a minimum education, including the sciences.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by DavidLeodis » Sat Feb 18, 2012 12:05 pm

Wow! What an amazing image and even more so seen when zooming through the "At a full resolution" link. 8-)

It would be a long climb up to get out of that crater if you fell down it!

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Wolf Kotenberg » Sat Feb 18, 2012 5:56 am

If George Lucas ever gets a hold of this .......................................

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by bystander » Sat Feb 18, 2012 4:02 am

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by NoelC » Sat Feb 18, 2012 3:30 am

Chris Peterson wrote:
Somehow that looks familiar. :)

-Noel

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by iamlucky13 » Sat Feb 18, 2012 2:49 am

Les Cowley wrote:Has the vertical scale been exaggerated? This can happen with NASA images.
Usually when NASA exaggerates vertical scale, it's to emphasize particular features for a legitimate reason, and they mention the enlarged scale in the caption. The LRO team press release doesn't mention any stretching in this case:
http://lroc.sese.asu.edu/news/?archives ... ular!.html

I do think, however, there is some unintentional stretching near the edges as a result of trying to project what was basically a side-scanned image as this orbiter generates to the perspective we would see from a stationary position.

Also, oblique shots of other bodies in the solar system are very eye catching because they are very, very rare. Almost all pictures of the moon or any other body are either from far away, or else straight down.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by iamlucky13 » Sat Feb 18, 2012 2:38 am

Boomer12k wrote:This guy had it right 1800 years before Copernicus. If people had believed him, we would have been ahead of the game...If the Church had listened to Galileo, we would have been ahead of the game there too....it is too bad...

This guy deserves more than just a crater named after him....maybe A MOON...not just a crater....maybe a planet....hey, how about we name an EXOPLANET after him in another star system...that would be fitting....
It's certainly remarkable, and a pity his name isn't better known, but wasn't very useful since he was unable to show how his idea better described the universe than the geocentric model.

As far as Galileo, keep in mind he wasn't going up merely against the Church here. If he hadn't managed to piss off several individuals in the Church, in fact, it probably would have been his biggest ally, as quite a few high-ranking clergymen found his arguments, and those of Copernicus before him, quite compelling.

However, Galileo was challenging the entire world, educated and uneducated alike.

In his day, every person knew just from getting up in the morning and looking outside that the sun moved around the earth. It was a daily experience, reinforced from birth, and with the exception of a few well-educated and very open-minded individuals, the most obvious interpretation was assumed to be the right one.

We can get just a teeny, tiny hint of the depth of conviction that Galileo was up against with a modern example: People everywhere were outraged when the IAU recategorized Pluto as a dwarf planet. Even 5 years after the fact, it's easy to get people ranting about those "idiot astronomers" and their meddling. Neil DeGrasse Tyson has talked several times about hate mail he gets as a result of it.

Recategorizing Pluto was a change of a label and some textbooks.

Galileo was telling people their entire worldview was completely upside down.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Craig Willford » Sat Feb 18, 2012 1:53 am

This picture is just stunning. I clicked on the picture to bring up the full resolution version (the one with 1.6 meters per pixel) and just spent time scrolling around. Wow.

APOD continues to amaze and thrill, day after day. Thanks.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by alphachapmtl » Fri Feb 17, 2012 8:49 pm

rstevenson wrote:
zijon wrote:Pyramid shaped object (rock?) at x:1100px / y:1700px from top-left corner.
The Egyptians got there first! (And what is all that fuzz? Nobody's cleaned that thing in years!)
rock.jpg
Rob
Those seems to be 3 small craters.
<a href="http://tinypic.com?ref=3wuqg" target="_blank"><img src="http://i39.tinypic.com/3wuqg.png" border="0" a>
http://tinypic.com/r/3wuqg/5
http://i39.tinypic.com/3wuqg.png
Image

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by UncleStu » Fri Feb 17, 2012 7:28 pm

The more I know about the moon and other non-earth places, the less I want to live there. Would you?

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by LunarHiker » Fri Feb 17, 2012 7:02 pm

:?: :?: :?: Does anyone know what accounts for the footpath/deer trail looking features that interesect the crater wall?

I could almost swear I was looking at a mesa in my home state of Utah criss-crossed with little trails. We always assumed the quasi- switchback paths were remants of deer crossings or previous human visitors. I can't decide now if the paths in Utah were really geological features unrelated to animal/human contact or if I am misreading the image of the moon here.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by FloridaMike » Fri Feb 17, 2012 5:15 pm

Chris Peterson wrote:... and best seen when enhanced by careful image processing.
Thanks Chris, added to my backgrounds folder, awesome.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Sandstone » Fri Feb 17, 2012 4:32 pm

The west wall...

This raises an interesting question, what is east, and what is west? This past summer I delved into solar observing, and was quickly confused by a concept I thought I already knew... because in solar observing conventions, "east" and "west" are reversed from lunar conventions.

After much searching, I found this very good explanation:

http://the-moon.wikispaces.com/IAU+directions

Mark

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by bystander » Fri Feb 17, 2012 4:27 pm

rstevenson wrote:The Egyptians got there first! (And what is all that fuzz? Nobody's cleaned that thing in years!)
Not the Egyptians, but their gods (obviously ETs). They also made the Face on Mars (notice the pharaonic headdress).

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Chris Peterson » Fri Feb 17, 2012 3:59 pm

sinanipek@yahoo.com wrote:I've always wondered why the moon is mostly (or absolutely) black-and white? Is there a particular reason for that?
The rock on the surface of the Moon is largely basalt- a material that ranges from gray to black (on the Earth as well). The lunar regolith (soil) is just shattered and powdered basalt, which may be further darkened by space weathering.

In the absence of water and oxygen, the sort of chemical reactions that form colorful minerals on Earth are largely absent, so the lithology is much simpler. That's not to say the the Moon doesn't show a range of colors, but they are subtle and unsaturated, and best seen when enhanced by careful image processing.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by jinger » Fri Feb 17, 2012 3:53 pm

Boomer12k wrote:This guy had it right 1800 years before Copernicus. If people had believed him, we would have been ahead of the game...
Makes me wonder what knowledge we're suppressing now that will re-emerge in 1800 years.
Boomer12k wrote:This guy deserves more than just a crater named after him....maybe A MOON...
Ancient gods or fictional warrior princesses with their own TV shows qualify - scientists don't seem to make the cut.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Chuck1943 » Fri Feb 17, 2012 3:44 pm

I find the ridges and layers on the wall interesting.
I wonder how they got there. The nice thing about ignorance is it gives me something to ponder.

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by rstevenson » Fri Feb 17, 2012 2:25 pm

zijon wrote:Pyramid shaped object (rock?) at x:1100px / y:1700px from top-left corner.
The Egyptians got there first! (And what is all that fuzz? Nobody's cleaned that thing in years!)
rock.jpg
Rob

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by orin stepanek » Fri Feb 17, 2012 2:22 pm

owlice wrote:But such magnificent rock and dust!
True! 8-) :thumb_up: :clap:

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by owlice » Fri Feb 17, 2012 1:20 pm

But such magnificent rock and dust!

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by orin stepanek » Fri Feb 17, 2012 1:10 pm

sinanipek@yahoo.com wrote:I've always wondered why the moon is mostly (or absolutely) black-and white? Is there a particular reason for that?
No atmosphere or water to bring color there; Only rock and dust! :|

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by sinanipek@yahoo.com » Fri Feb 17, 2012 11:47 am

I've always wondered why the moon is mostly (or absolutely) black-and white? Is there a particular reason for that?

Re: APOD: At the West Wall of Aristarchus Crater (2012 Feb 1

by Les Cowley » Fri Feb 17, 2012 11:43 am

Has the vertical scale been exaggerated? This can happen with NASA images.

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