Reticle Rock - a Nevada Petroglyph

Description

Angular changes in the positions of objects in the night sky were measured by sighting from one viewing point (the near circle) towards the celestial object. The total angle of 46 degrees is the seasonal change in the position of planets, the sun, and the moon. Knowing this angle is to know the month. Given the phase of the moon you know the day of the month within a day or two.anytime during year that you can see the stars and the moon. The sun set position seems to indicate that it is midspring when this model was captured. This rock was part of an astronomical observatory found in Nevada near an 4,900 year old mummy was found with many artifacts. This site may have been occupied for more than 11,000 years on the shores of ancient Lake Lahotan from 24 images