This directory contains files related to the study of star counts from SDSS around the galaxy. This is the SDSS casjobs.sdss.org query run: rznew.sql The query selects all stars with 13 < r0 < 22 150 < l < 170 47 < |b| < 70 This is the result of running that query: rznew_yannyjhu.csv This astrotools script is used to convert the .csv file magnitudes and colors/positions into distances for stars: nconvertjuly2015.tcl This is the result of putting the rznew_yannyjhu.csv through the nconvertjuly2015.tcl file: This is the file to analyze: uband photometric errors are the last column of each row: rznew This a a column-by-column description of the rznew file: pinfouerr This is this readme file: readme