Firstly for clarification to everybody who is a moon novice like me some basic fundamentals about the moon Latitude and Longitude coordinate system;
and the location of Anaxagoras crater on the moon and its coordinate position.
The moon cooridnate system (see diagram) below only shows the visible side of the moon as viewed from earth.The coordinate system of the moon is a
view of its surface as it appears directly facing the earth. The darkside of the moon which never faces the earth is not apart of the coordinate
system shown in the diagram below.
Moon Sunrise from a laymans definition simply is referring to the extreme tips of latitude or longitide coordinate locations where the moons bright
side joins with the darkside of the moon. Remember the moon doesnt rotate like the earth so sunrise is referring to the the outermost coodinates that
are nearing entry into the darkside (which is never viewable from earth).
The coordinate position of Anaxagoras crater, can be found on Wiki by googling name of Anaxagoras crater. I have included a screen shot below which
has a window scrollable feature, so scroll right to see the following details.
The details provide in the link are sun elevation is at 11° sunrise at Anaxagoras crater and Its coordinate position is 73.4°N 10.1°W. So as you
can see its very close to the north horizion which disspears into dark.
Therefore knowing the sun elevation 11 degrees and also the tower shadow length of 375 metres allows using trigonometry for calculating the tower
height to be 73 meters.
To give perspective to the height of 73 metres it would be like cutting in half a picture of the Twintowers of Deutsche Bank Headquarter in Frankfurt
which each rise to 155 metres. I included a picture of the shortened tower lengths for a visual reference which i have cut down by more than half
Refer to Page 28 of this thread where i posted a picture of their full height.
Looking down at top of the tower ( refer to picture of the anomally below) and around its immediate area of position i dont see any characteristics to
indicate the thing is leaning or is located on part of the lunar surface which is iregular in angle with that surface around it (except for crater
rims). If there was any possible deviation it might be arguable that the thing looks to be sitting based in a shallow crater. Even if true its of no
significance as this would only have the effect of reducing its real height compared with the length of the shadow. Therefore the calculation of
73metres is quite conservative as an error to correct for true height of the lunar surface would only result in calculating a longer height for the
anomally tower. Never the less im happy to work with 73 metres.
Therefore I dont see ground angle as having an significant bearing in assessment of this anomalies height, the significant factors to accurately
determing its height are the angle of sun at its coordinate location; and also being able to make an accurate measurment of its shadow length which
was achieveable because we have an accurate LRO source specifying the metres per pixel data for the image (LRO orignal picture taken of the rim of
the Anaxagoras crater)
Now the last thing is the width of the tower. I have made an esitnate of the tower width based on knowing the length of the shadow. The picture below
is a zoom in on the anomally and the red horizontal line indicates the length of the Tower shadow and the green vertical line its width, which i
estimate to be close to 53 metres.
Posters and readers of this thread compare these dimensions (73 metre high by 53 metres wide) with the similar area dimensions taken up by twin towers
in the picture above. Do you think this is pile of rocks on the moon or something more worth investigating by Nasa?
I should just note for any readers who came straight to the end of this thread this particular tower is not the Shard but another smaller height tower
anomally which somebody identfied at the edge of the Anaxagoras crater.
edit on 15-2-2013 by AthlonSavage because: (no reason given)