set term png
set grid
set style data lines
unset key
set output "eot.png"
set xlabel "<---Normalized Date--->"
set ylabel "<---Minutes Early/Late--->"
set title "The equation of time"
plot "analemma_data.txt" using 1:2 with lines
set output "declination.png"
set xlabel "<---Normalized Date--->"
set ylabel "<---Degrees North/South--->"
set title "Declination"
plot "analemma_data.txt" using 1:3 with lines
set output "analemma.png"
set xlabel "<---Minutes Early/Late--->"
set ylabel "<---Degrees North/South--->"
set title "The analemma"
plot "analemma_data.txt" using 2:3 with lines
quit