light pollution map san antonio and austin_credit

Light pollution map of San Antonio and surrounding areas. Image courtesy of Google Earth and David Lorens (University of Wisconsin-Madison). Click here for map key. http://cleardarksky.com/lp/SanAnTXlp.html?Mn=astronomy

Light pollution map of San Antonio and surrounding areas. Image courtesy of Google Earth and David Lorens (University of Wisconsin-Madison). Click here for map key. http://cleardarksky.com/lp/SanAnTXlp.html?Mn=astronomy

Light pollution map of San Antonio and surrounding areas. Image courtesy of Google Earth and David Lorens (University of Wisconsin-Madison). Click here for map key. http://cleardarksky.com/lp/SanAnTXlp.html?Mn=astronomy