Same color scheme on Viking 1 pictures from '76
The Pathfinder Lander
Another Pentagonal Pyramid on Mars!
Another City on Mars!
Anomalous Images from Mars Global Surveyor
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I found this Pentagonal Pyramid on March, 28th 1999.
The picture MOC #3506d did I choose to examine when I read an email from Adam Marturana who found
the square pyramid, two colossi and the statue on the picture #3506c.
In the picture on the left side of this page you can see all the mysterious object in an 1km * 3.5km sized area.

location in original ab103506.img file
(EDR image)

Note: the original image is mirrored 		MOC frame #03506 c/d

MOC frame #03506 c/d
Click on image to see it in full resolution.
Mars Latitude -0.62°, Longitude 76.33°

All jpeg-images are generated without data-compression.
An EDR-image is the unprocessed raw data received from MGS.

 Pentagonal Pyramid

Click on the image to compare it with the raw data image.

Click here for a simple VRML-Model. Apart from the height, the scale is the same as on the images.

The 5 corner-points of the pentagonal pyramid did I set on the picture without thinking about any special ratios between them. After this, I measured the following angles inside the ground plane:

  A=110°
  B=100°
  C=95°
  D=120°
  E=115°

The ratios between these angles are:

  A*e/3 = B    (0.5% dev.)
  A*e/pi = C   (0.2% dev.)
  A*3/e = D    (1% dev.)
  A*pi/3 = E   (0.2% deviation)

A is the angle in the lower corner. The other angles are named counter-clockwise.

Note, that arcsin(1/3) = 19.47° is a very special value for an angle in our solar system. Read more about 19.5° on this page and if you want to know, how to calculate 19.47° mathematically exact, click here.

The photo is aligned at exact north-south direction and mirrored.
The length of the pyramid between the upper and lower corner is about 210m. The image resolution is exact 2.77 m/pixel.


Near the pentagonal pyramid I found some other interesting structures:

  • the 3-sided pyramid
  • the "temple"
  • the "mask".
The "mask" looks like this one which was found at the Al Ubaid site in Iraq!
The mask is dated to 5900-4000 BC in the Ubaid period of Sumeria.

Original Mars Global Surveyor MOC Images

All MOC images courtesy of Malin Space Science Systems
All image processing done with The GIMP
To view PDS/EDR: PDS-plugin for gimp / pds2ppm.c
Or use Nasaview or MOC-o-Matic

Holger Isenberg
web@areo.info
PGP-Key