add legend to plot
add legend to plot
larrybradley/astropy,saimn/astropy,lpsinger/astropy,dhomeier/astropy,mhvk/astropy,larrybradley/astropy,mhvk/astropy,pllim/astropy,saimn/astropy,lpsinger/astropy,pllim/astropy,saimn/astropy,mhvk/astropy,pllim/astropy,StuartLittlefair/astropy,dhomeier/astropy,astropy/astropy,astropy/astropy,larrybradley/astropy,dhomeier/astropy,mhvk/astropy,saimn/astropy,larrybradley/astropy,astropy/astropy,pllim/astropy,aleksandr-bakanov/astropy,mhvk/astropy,lpsinger/astropy,StuartLittlefair/astropy,astropy/astropy,saimn/astropy,aleksandr-bakanov/astropy,astropy/astropy,pllim/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,dhomeier/astropy,StuartLittlefair/astropy,larrybradley/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,lpsinger/astropy,dhomeier/astropy,lpsinger/astropy