Astronomy in Zyn XYZ

This books shows pictures that depict exactly what can be seen with a human eye under light polluted skies of DFW, TX with an 8-inch Cassegrain Telescope and 9 X 63 Binoculars. There is also a section with a review on Astronomy, and a few maps of Constellations. The book covers concepts of Trigonometry and a theory in Cosmology making it a good reference for further research.